The Bones STF Skinny Wheels are specifically formulated for what you skate. The Kult's 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. Skater engineered and designed, Bones style. Graphics at one side. Sizes available as seen below. Available in colorways as seen below. Colors are limited to specific size. See colors below for correlating size. Wheels sold in set of four.