SUPPLE, MUSCULAR GRIP. The Orangatang Kegel is your ticket to high-speed steamroller action and the obliteration of a variety of small mammals. LONGBOARD WHEEL SPECS Diameter: 80mm Width: 56mm Contact Patch: 56mm Style: Sharp lips with surface skin Bearing Seat: Offset Formula: Happy Thane Core: high-strength, high-stiffness, heat-resistant urethane Weight (per wheel): 8.2 oz / 230 g Durometers: 77a, 80a, 83a