Rollerblade Astro 10 Men&#39;s Skate, Yellow/Silv, Men&#39;s US 6.5 Lightweight supportive skate with technical aluminum frame for performance and adjustable brake for convenience Alu Tech aluminum frame provides excellent power transmission, can hold up to an 84mm wheel Lite 80mm wheels and fast SG7 bearings for a fast ride Adjustable brake enables customization of the brake height to insure consistent stopping power