Only the best. The Bones SPF Slim Society Wheels are specifically formulated for what you skate. The 100's are made with the Bones Skatepark Formula Slims, giving you more control and way less flat spots. Made in the U.S. at the Bones factory in Santa Barbara, California, the Slim Society's are skater engineered and designed. 56mm x 32mm, and 58mm x 33mm. Feature Bones and skull graphic in black on white.