The Metal Racer is one of the best values in yo-yo play. Made of precision machined aluminum, the Racer plays better than yo-yos twice its price. It is the perfect yo-yo for players looking to step up to a professional yo-yo! Specs: Weight : 69.5g Diameter: 54mm Width: 39.05mm Gap : 3.15mm Bearing: Size C - Response: SG Stickers - 19mm Slim Pads Compatible