Sure-Grip Fame Black quad roller skates. Boot Material: The skates feature a black vinyl vegan boot designed for durability. Components: They are equipped with a ROCK nylon plate, ABEC-5 bearings, and Carrera toe stops. Wheel Type: The wheels shown are designed for indoor rink use, though they can be swapped for outdoor wheels. Fit Note: These skates run slightly large, and it is generally recommended to select a size down from your usual shoe size.