[Non-Marking & Durable]-- Made from a natural rubber compound that provides plenty of grip and excellent rebound, and rounded to ensure smooth, consistent contact with the floor from any angle. Grippy natural rubber provides stability and predictable stopping power compatible with fast stops, quick starts and everything in between.[Features]-- The rounded profile is great compatible with agile skaters that favor sharp lateral movements and quick steps. Have a good-sized footprint (48mm) compatible with maximizing grip, stability and agility. The stem is hollowed out to save on weight.[Grips Well on all Surfaces]-- Designed with an array of dimples on the stopping surface that add grip and traction to every halt. These toe stops are made compatible with indoor and outdoor use.[Adjustable Toe Stops]-- An adjustable 9/16 inch (14mm) bolt with nuts included through the centre which screws all the way in to the plate. Stem Length: 1 inch (26mm). Hardness: 85A.Colour:blackMaterial:rubberPackage Contents:2 * Roller skate brakeOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.