The Bones STF Duncombe Numbers V3 Wheels are specifically formulated for what you skate. The Duncombe Wheels are made with the Bones Street Tech Formula, giving you more slide-ability and way less flat spots. Made in the U.S. at the Bones factory in Santa Barbara, California, the Duncombe's are skater engineered and designed, Jake Duncombe style. Bones graphics at one side. Sizes available as seen below. Available in colorways as seen below. Wheels sold in set of four.