Cup Turner Foam Inserts Set for 3/4" PVC Pipe Fit All Tumblers Bottles Cups with Mouth Opening Width from 2" to 4" (Set of 4 for 3/4" PVC Pipe)

Wish you could get them all rhe same size but worked awsome on holding the cups.

Used for epoxy tumblers. They work great but they do fit snug. I fixed this by hot gluing the foam to the arm. That way, I can easily remove the cup from the arm.

I have a hard time getting these to fit my 1/2 inch pipes for my tumbler. I've used their 3/4 inch on other turners, but these did not work out.

These work great, just make sure you know what size pipe your turner has. The ones I got were for 3/4 inch pipe. That is what the outside diameter of my pipe measures. Apparently that is what the inside diameter is supposed to be. I was able to make them work by putting a piece of 3/4 inch pipe over my pipe and now I am able to use the pieces. My pipe does not really seem to be 1/2 inch either. It is not the same as a piece of 1/2 pipe. Wish these were all standard. The good news was I was able to make it work without a lot of hassle. These work better than the dollar store foam footballs and there are 4 different sizes for different size tumblers.

They fit great in the cup, so great that they are hard to get out. I have ruined cups because I can’t get them off until the cup is fully dry, but by that time the epoxy has already glued it to the tumbler