Yoyo Replacement 2pcs 8 Ball Responsive Yoyo Bearings with Short Axles and Bearing Remover Tool Features: Yoyo replacement accessories include 2 yo-yo bearings, 2 axles, and 1 bearing remover. Made of stainless steel, corrosion-resistant and durable. High precision bearings for smooth, quiet spinning. Bearing remover with a split ring for easy attaching to your keychain or backpack.  Specifications: Material: Stainless steel Bearing Removal Tool: 68 * 6.9mm Type: Unresponsive / Responsive (optional) Unresponsive: Bearing: 6.35 * 12.7 * 4.762mm Bearing Ball: 10 balls Axle: M4 * 10mm Responsive: Bearing: 6.35 * 12.7 * 3.17mm Bearing Ball: 8 balls Axle: M4 * 8mm Package List: 1 * Bearing Removal Tool 2 * Bearing 2 * Axle