Synthetic leather boot for SUPERIOR comfort with added heel strap Nylon plate with ALUMINUM trucks and all natureal rubber toe stop. 62mm GT-50 Swirl Wheels designed for SPEED ABEC-5 Bearings for incredible speed The GT-50 skate package is a perfect beginner skate for children to adults. Fully functioning roller skate. Features a synthetic leather boot, ROCK plate, GT-50 swirl wheels, ABEC -5 bearings, and a Carrera speed toe stop. Ideal for Recreation skating and beginner roller derby. Some larger skates (size 14 and 15) will come with an aluminum Super X plate.