Tama RB8P Plastic Bottom

But they do wear down after a couple of years.

These sleeves have a very strong build quality which one would expect from Tama but I find them to be way too long. They actually cover up most of the thread on the cymbal arm and leaves no room for a wing nut to screw on.

I have tried these on several cymbal arms and they were too long for every one of them. Of course the solution is to just cut the bottoms of them to make them shorter but one would be a lot happier if the product they had bought would work the way they wanted straight away.