Bones skate wheels * Decenzo Gizzmo pro design * 4-Wheel set * Size: 53mm x 29mm * Street Tech Formula * V2 Locks shape * 103A durometer * Bones custom print design * Colour: White The Bones Street Tech Formula powers Bones STF. You can have wheels that roll quickly, grip when needed, and slide when you want with no flat spots. This STF wheelset gives you more control so that you can skate confidently. Bones STF tires outperform other wheels and last many times longer than regular wheels. It is also more durable than ordinary wheels. These wheels offer greater control, roll, and more comfort on uneven terrain.