Moxi Roller Skates sells two lines of roller skate wheels, the Moxi Gummy Wheels, and the Moxi Juicy Wheels. Both are 62mm high recound MDI processed urethane with a urethane core and 78a hardness. Wheels come in Gummy Teal, Gummy Pink, Gummy Lavender, Juicey Pink Frost, Juicy Red Cherry Stain, and Juicy Smoke. Mix and match em’ for any combination you wish. Roll on indoor or outdoor surfaces without skipping a beat, just be sure to “Keep it Wheel!”