SMRT 608 Bearing Button Cap Perfect to anodize & Electroplating Fully CNC Japanese Machine Single Rod Construction (608 Bearing/Aluminum/Concave)

This is an finely fabricated piece; the bearing buttons fit very nicely into a standard 608 bearing, with no drag.It does cover the entire bearing, so if you have a pretty ceramic one, you will lose its visual appeal ... fyi.A definite upgrade from the push-in buttons, if you have a nice spinner you want to spruce up!

This was perfect! I decided to go with the concave model at first I didn't like it but as I got used to it I'm glad I did! The machining is immaculate! It feels great on your fingers with plenty of room to keep your fingers away from bodyI highly recommend this I will be getting another when I get another spinnerThe price isn't to bad when you think of the time that went into machining itI hope they'll have black ones soon that's my only complaint lol

Love these, they are as close to perfection as you can get.

Nice, comfortable

Fits perfectly, and have had no problems with it.

Best cap ever!!