OJ Purple Worms Bratrud Skateboard Wheels Purple 56m/87aThe Keyframe Purple Worm Todd Bratruds 87A Skateboard Wheels from OJ are 87A in durometer and 56mm in diameter making them spot on for cruising about. These wroms have been designed by non other than Todd Bratrud and a sick purple colour. Wheels are sold as a set of four. to view our entire selection of OJ products