Comes with 3 blade gears that are made with a HIGH QUALITY DURABLE rubber that compares to the original brand part.The Magic Bullet Blade Gear Replacement fits both the magic bullet cross blade and flat blade. Gears are reverse threaded. To remove your broken piece turn rubber gear clockwise while holding the blade steady. Use pliers or vise grip on rubber gear and cover the blade with cloth. Compatible with the Magic Bullet power base model MB1001.