This item is a roller skate brake, made of good material for practical use. It is wearresistant, nonslip and very durable for longterm use. Easy to install, safe to use and quick to install. It will be the choice for you. The roller skate brake surface is large, the effect is good, can reduce the speed. Features Color Black Material Rubber Size 9.008.803.70cm3.543.461.45in Designed to provide you with reliable stops and provide stability in skating while ensuring your safety. It can provide you with a comfortable skating. Firm grip, not afraid of sudden brakes, strong wear resistance. This roller skate brake is easy to use and convenient to install on most types of roller skates. Made of sturdy and practical material, it is strong and durable for longterm use. It can be a good tool for those roller skate enthusiasts, and they will like it very much. Packing List 1Roller skate brake pads 2Short screws 1Long screw