The Hard ANO Ring Disk is an alternative to stainless steel. The ANO coating makes it twice as hard as traditional stainless steel and scratch resistant. (Our stainless steel is hard chromed to make it more durable than traditional stainless steel.)
This fast, light and durable sliding disk is great for anyone who wants to step up their game. The ring design distributes weight to the outside of the slider to maximize balance and stability. These sliders can transfer heat from your foot so should be cooled prior to use. 
The Hard ANO disk has a speed rating of 10 on a scale of 10.