Darkstar Skateboards began in 1997 as a skateboard wheel company. It has since expanded its operations into a full-blown board company with a solid list of professional skaters. The Darkstar Responder Wheels are a 100% solid, smooth, and fast! Tear through the streets and start rolling with the Darkstar Responder Wheels. These are a classic street style wheel shape perfect for ripping through the streets or cruising through the skatepark. Features - Diameters: 51mm (Lime), 53mm (Red) - Durometer: 99A - Graphic: Responder - Solid, Smooth, Fast - Pack of 4 Wheels Code: Responder Skateboard Wheels