White Waterproof Duct Seal Putty (3 pcs), Moldable Plumbers Putty and Sealing Clay for Indoor & Outdoor Use – Quick Mending for Air Conditioning Holes, Drain Connections, Ideal for Wall Hole Repairs

Worked great, I used it to cover up some rust around the overflow in my bathroom sink, it dried in a few days and then I trimmed it to look good

Update: Changing my review to 5 stars due to the quick response and help from Qidarusxl to resolve this.Waterproof Duct Seal Putty (3 pcs), only received 2. Looks like the the packing was opened and one is missing. A return the someone used 1 and returned the rest ???

Not that good at all didn’t hold won’t buy again

There are a whole number of ways to use this stuff, but it particularly shines as a plumber's putty. It is stretchy and pliable, and can be molded stably into different shapes, as it sticks to itself. Creates a nice seal where needed. They've also included a full THREE individually packaged units, which is more than enough for a number of different jobs. It sets hard so that you can shape a contour when ready. Everything I need to fix a damaged rail...

Took forever to harden

Handy three-pack seems like a good idea for diy, occasional plumbers vs. pros, who will use up a whole container.I don’t have enough experience to fairly judge the quality of the putty vs. other brands, but it worked well for my needs and it’s nice to have a couple of packs in reserve that I’m not worried about drying out.

I got the 9 pack option. This is very soft putty. There are no instructions included, but the Chinese on the blocks basically repeat what's in the product description which is just basic instructions for using wall putty.The blocks are individually wrapped because they cure when they dry and it hardens up. It begins with the consistency of soft dough which helps it fill in gaps and holes, and then hardens up over time. There is a bit of shrinking, but not too much from what I've seen. There are no ingredients, so I have no idea what material it's made of or how long it'll last, but it works decently well to block off holes in the wall.

Not standard plumbers putty, this putty hardens after a couple days. Box has 3 bags of putty to keep it moist until use. Works well.