These wheels have the same high quality Poly-BD compound as the Radar DevilRay! Fantastic grip with a lightweight nylon hub and in a narrow width for optimal performance! Great for use on SportCourt or smooth concrete surfaces. Radar Flat Outrageous skate wheels 62mm / 88a. Designed specifically for flat track derby played on sport court!Flat Outrageous are 62mm x 37mm, narrow art skater shape Flat Outs are 62mm x 43mm, standard indoor speed shape
