Description:The Magic Bullet is designed to handle hard-to-chop foods, but after long periods of use, the motor in the base gear can wear out. This product is made to fit Magic Bullet blenders. Made of plastic, rubber and metal. 4 replacement gears, 2 base gears and 2 blade gears for your magic bullet.Features:Made of plastic, rubber and metal material.This is a generic product made to fit Magic Bullet blenders.4 replacement gears, 2 base gears and 2 blade gears for your magic bullet.All base gear in Magic bullet are reverse threaded.Tools required for replacement: a screw driver or wrench, a thick cloth, some oil for lubrication.Specifications:Condition: NewColor: Black and transparentMaterial: Plastic, rubber and metalDiameter: Approx. 3~3.2cm / 1.18~1.26inHeight: Approx.1cm / 0.39inWeight: Approx. 34gFor Magic Bullet 250W juicerPackage Includes:2 x base gears2 x rubber gearsNote:1. Please allow 1-2cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard..