Players skate on four-wheeled (“quad”) roller skates, and are required to wear protective equipment, including a helmet, wrist guards, elbow pads, knee pads, and mouth guards.All current sets of roller derby rules explicitly forbid inline skates for players.(USARS requires quad skates for all skaters. How Do You Get Good At Rollerblading? https://www.youtube.com/watch?v=Uir3ZAxlUnw FAQ Can you use 70% isopropyl alcohol to clean bearings? Put the bearings in a container WITH A LID and fill it to…