Hilitand Plastic Gears Set, Pulley Belt Worm Kits Gear Set Robot Motor Car Toy for DIY Parts (34kinds)

As described / fast shipper / will buy from again / AAA+++

Nice little bag of assorted gears. As someone else mentioned, an insert with gear specs would be nice. It is just a plastic bag with useful gears- even a QR code to link to specs would be nice. But for just playing around with motors, getting wheels to turn, this is a good grab bag.

This is a decent assortment of small plastic gears. I was a bit surprised when I opened the package to find that all the gears were all in one very small 3" X 4 ½" resealable "baggie". The largest of the gears is just a bit over 1" (around 30mm) in diameter, and the smallest around ¼" (less than 8mm) and smaller still the ones designed to mount to the motor shaft. The selection also includes several small pulleys.Unfortunately there is absolutely do documentation or a parts list that tells the user how many of each size is included, and worse yet, how many teeth are on each gear. This makes it very difficult to plan a gear train with any kind of accuracy unless you're willing to get out a 10 power magnifier and count the teeth on every gear that's included. Including a single sheet with listed sizes and tooth counts or gear outlines you could lay the gears onto for identification would have been extremely useful.Other than that, this is still good value for the money.