Yoshimura is known worldwide for our attention to detail.Our 6mm works edition stand stoppers are a product that not only looks like a work of art, is functional too.These spools are designed to spin when engaging with the stand and make it easier to get the bike up on a stand.Made in the usa from 6061 t-6 billet of aluminum, then undergoes a special recipe of anodizing.This special process creates a diamond like surface treatment, that unlike regular anodizing, stands up to uv, and light surface scratches.Works edition only from yoshimura!