A Stone these things are stiff as a KC Aviar Love it
Proto A disc was Blue it was my test to see if it would work.
Steve I will get back to you about bleeds or not I'll bring em to the Vibram Ihave had good luck with Star and Pro Plastic not bleeding Check out other dyes here
When are the ridges due out? I want some but swore I wouldn't get caught up in trying to find a proto