Specifications: Condition: New Color: Black and transparent Material: Plastic, rubber and metal Gear Base Size(D * H): Approx. 3.7 * 1.1cm / 1.46 * 0.43in Rubber Gear Size(D * H): Approx. 3 * 1cm / 1.18 * 0.39in Weight: Approx. 48g Package Includes: 2 x base gears 3 x blade gears Note: 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. Stable and Durable: Blade gear replacement made of plastic, rubber and metal material. All base gear are reverse threaded. Durable, excellent performance, high hardness, can be used for a long time. Great Replacement:The juicer rubber gears is designed to handle hard-to-chop foods, but after long periods of use, the motor in the base gear can wear out, so it is a great replacement for juicer blender. Wide Application: This base gear is suitable for Magic Bullet 250W Juicer, which can meet your needs, is your ideal accessory choice, and hope to make you satisfied. Easy to Installation: 1. Take a towel, with a towel wrap blade with his left hand holding. 2. Right hand holding the connecting shaft, connecting shaft rotate clockwise to fall. 3. When installing counter clockwise to tighten. Strict Quality Control: The blade gear replacement is manufactured to standard specifications, in strict accordance with factory quality control. So there is no need to worry about the product problems.