ROKR 3D Puzzles for Adults,Wooden Marble Run,3D Wooden Puzzles for Adults Kids Ages 12-14,Wood Puzzles Adult,Model Kits for Adults,STEM Projects for Kids Ages 12-16,Home Decor Hobbies for Men Women

I bought this marble parkour for my daughter's 9 year birthday. It is amazing! First of all, I have to say it's not easy to assemble because all pieces are designed to snap to each other super tight. I did all the snapping work, and my nails were quite stressed. It is a good idea to utilize two tools included in the package. I don't think my daughter is strong enough to snap them. Though you may think this is a drawback of the toy, I believe it's absolutely necessary to make the whole structure sturdy. I also love the way they snap together with mortises and tenons. Very smart and elegant. I had my daughter to take off pieces from boards and figure out how to piece them together. It was so fun to piece this complicated, delicate, and very well designed 3D puzzle together. We got the fun of being a carpenter when we put each module together and then wow at how smart the module works (like a programmer wow at nice codes). When the whole toy was put together, we were surprised to find out that the parkour runs the marbles endlessly. I had thought we had to pick up the marbles from the bottom and put them to the top of the parkour each time. It's not the case. The whole parkour is a continuous cycle, wow! My whole family love it. My 6 year old son was so excited that he turned the handle non-stop for an hour, lol I'm going to buy a different puzzle of the series next year. Thumb up!

Very nice kit and a great conversation piece once complete. It was easy to assemble. The parts are laid out nicely and easily removable from the carrier boards. You should have some basic modeling tools handy, but really, all you need is included. Use the included sandpaper to sand down connection points (very small areas where the pieces are attached to the carrying board.) These points are small, but should still be sanded down to facilitate movement. The instruction book is well written, consisting of very good graphic pictures showing each step clearly. Some steps could be a little confusing, so review your assembly pictures carefully for hints on proper orientation, etc. I had the large wheel installed backwards. Something didn't seem right, but I kept moving forward and didn't catch my mistake until several steps down the road. So, yes, I had to go backwards through the book and disassemble until I reached the proper step to find my mistake. So, if something doesn't seem right, just study the steps and pictures very carefully. If you have to disassemble it to repair a mistake, you basically weaken the joints a bit. But, overall, I thoroughly enjoyed building this. Just take your time. The parts fit tightly together. So, be gentle. You don't want to break any pieces. It will go together nicely, and you can then amaze your family and friends.

This was a great project for me along with my 10 yr old grandson. While he could not have built this on his own, we were able to conquer it over about 3 days (he doesn't have the longest attention span). The instructions were basically pictographs that were not always necessarily clear or helpful. Some of the individual steps had QR codes that could be scanned, taking you to a link that had additional detail to explain the step. In my case, not a single one of the links worked. Despite these challenges, we were able to complete the project and my grandson is thrilled with the end product. The parts are all die cut but still in their wooden frames. Some of the parts are rather delicate so caution is needed as you attempt to extract the pieces from their wooden frame. Several of the pieces could not be cleanly removed from the frame and caused some issues with fitting them into their correct position or location. We did have one piece fail that connected 2 of the marble run troughs together. Not sue how well this will hold up, but we will see

So fun to put together. Not for children.

Very well designed model. I am astounded at the quality of the materials this is made from. I just finished assembling mine. I took my time and it took about 4 hours to assemble. All of the pieces come lazer scored and numbered and you have to pop them out of the sheets of wood. There are lots of pieces and some very small pieces and I didnt break any popping them out of the sheet. They include PLENTY of extra wood pieces in case they do break though. The wood pieces are pretty strong and thick. Everything fit together snugly. When I was finished building I only needed to do some very minor adjusting for one dead spot in the track where the marbles would hang up and it was only because I hadn't seated the track in its support all the way. I gave 2 stars on ease of assembly because this is a difficult model as designated by the manufacturer. But that's what I wanted, something difficult. I will eventually be purchasing the other models in the series.

I bought this on kind of a whim thinking it will be fun to show my 3 year old great grandson when he comes to visit next month. I've worked with both wood and plastic models so figured it would not be a problem to assemble. The pieces all come on die or laser cut sheets, very accurately cut and none were cracked or broken. My thumb got a little sore punching out all the pieces but anyone with longer fingernails will not have my problem. Everything went together fairly easily but the last several marble tracks require some finesse. Judicious use of pliers helps to squish pieces together in a few places. Be sure to use the wax to lubricate all surfaces that move against each other, especially the cams! End result was pretty sturdy and fun to operate. Only one area gets a little loose after playing for awhile so I'll probable added some glue to that joint. Took about 4 or 5 hours over 2 days to put it together, hard to set aside once I started. I think a handy 12 year could handle assembly with a bit of help. Highly recommended!

I received this as a gift from my wife this past Christmas. I was frankly a bit intimidated as I looked at the packaging. Six weeks later I finally got started. I could not Stop building until it was completed about five hours later. Following the picture instruction booklet was very straight forward. There are QRC blocks in the instruction booklet which link to video clips. These are very helpful and clear up any lingering question about what needs to be done. Everything needed to properly assemble this project is in the kit including sandpaper and wax (lube). Each piece is labeled and easily identifiable. Instructions are clear. The completed model is fairly sturdy and best of all, it actually works when assembled!! This was a lot of fun to build and operate and I highly recommend this product.

The directions are clear and easy to follow. All of the pieces are all labeled and this makes it fairly easy to put together. The only bad thing about this 3D puzzle is it will not “function” as it is meant to due to several warped pieces. I am still putting the puzzle together, because I do enjoy these in my down time. I hated that it had the warped pieces because other than that, it’s an amazing puzzle.