Koelin Cup Turner Foam - 4 Pieces Cup Turner Accessories fit 20 30 oz Tumbler for 1.05 inch PVC Pipe High Density Foam The Partner for Cup Spinner Machine 3/4 inch Wand

I love the concept of this and have used the larger foam pieces with great success. The only drawback I found (after I ordered two packages of these) is that the smaller foam pieces have a different size center hole compared to the larger foam pieces - thus they both don't fit on the same cup turner pole. I haven't found a way to remedy that yet as my five turners all have the same size pole that the foam would go on .... so I basically have four smaller foam pieces now that I am unable to use unless I can figure out a way to make their center hole larger to fit the pole.

I love these things. I have 3 different packs. The 20 oz size fits a standard 20 oz, a skinny 20 oz, a skinny 30 oz and all the way down to a 10-12 oz. Highly recommend!

These are great!! So my cup turners came with pool noodles, which work well on some cups.... not good on others. Which is very frustrating if you have ever had a cup fall off on the turner on your final level of epoxy. These really hold the cup in the turner. I have tried multiple styles of 20 and 30 oz tumblers all have stayed on very well. These arent as cheap as pool noodles but are well, well worth the money

Well made , my mistake was not noticing center hole is for 1/2" pvc. I had to buy whole set of smaller pvc to be able to use. My cup Turner is 3/4". I don't know if other size is available , but though a great concept ,make sure you pay attention to your pvc size. I hope it will work well with my 2nd set of cup turners

I began using these for my tumblers rather than the footballs. These are definitely a game changer. They seem to hold up much better as well. I've purchased them twice already, and plan to purchase more.

I use this item for my crafting and this keeps everything where it's supposed to be to ensure that my crafts won't be damaged yet it provides other benefits as well. This was a great purchase at a decent price. It not only came as described but they were also shipped an delivered in a timely manner. I would buy from this vendor again...

I was using the black plain foam inserts but since they arent stiff the cups kept falling off which would almost send me into a downward spiral since i couldnt sell the cups dented afterwards. I got these and they are amazing. No more cups falling off the tumblers! Will only buy these inserts moving forward.

I have now purchased 3 sets, 2 sets for the 20oz, and 1 for the 20/30oz. I LOVE THEM! At first I thought I was going to have to lift more weights because they were hard to get on and off the spinner arm, and out of the tumbler. But, now they are perfect. At this point I have them on all of my spinners and then spin 24/7! Highly recommend and I will never be going back to footballs. I would love to see a set that will hold the skinny koozies (still having to use footballs for those)!

Had to return. Sizing is not correct. I measured my turner arm before ordering and ordered the one 3/4 inch since that is the size of my piping. The hole for the turner arm is way too big. They all measure an inch as shown in the pictures

These are a game changer and well worth the price. No more using footballs or pool noodles to hold my cups on the turner. These are snug and aren’t moving when spinning. Only comment is I wish I could buy a 4 pack of the same size because I don’t use the 30 oz one often enough but would live just the 20 oz size. Will definitely buy more.

These little foam things are amazing. They work so well, and they are squishy so the more you use them the better they become. I haven't had any problems with them. I definitely recommend these over pool noodles. Works like a charm.

I have 2 sets, wish they came ain’t smaller sizes to fit sports bottles. They work great and hold the tumblers securely in place. Better than footballs or pool noodles.

I ordered two sets of these. One (with 4 for the 20oz) and one set with 4 (2of each) this set showed up with a much larger hole than I ordered. The other set fits accurately and both were to be 1/2”. I will be returning.