The milliput putty is a clay putty, and many people don’t know that it reacts with water so you can perfectly smooth the joints with the tip of your finger.
Personally, I really like this putty, as well as how easy it is to use it to fill gaps and easily disguise joints. I buy a lot of milliput putty because I use it a lot. You can also mix it with green stuff putty or other putties.