Bones ATF All Tank 80A Skateboard Wheels The Bones ATF All Tank 80A Wheels are soft all-terrain skateboard wheels built to keep you rolling smoothly when the pavement gets rough. Bones&'; All-Terrain Formula(TM) uses soft 80A urethane for control, grip, and a smoother ride across rough streets and everyday terrain. Available in 54mm, 56mm, and 60mm sizes, the All Tank lets you choose a more compact, maneuverable setup or step up in size for increased roll. They&';re a versatile choice for cruising, rough pavement, and riders who want a softer alternative to traditional hard skateboard wheels. Details Formula: Bones All-Terrain Formula(TM) (ATF) Durometer: 80A 54mm Size: 54mm diameter x 33mm width 56mm Size: 56mm diameter x 34mm width 60mm Size: 60mm diameter x 36mm width Surface: Smooth Suggested Use: All terrain, rough streets, and cruising Color: White