Replace the poor quality plastic gear with our CNC machined billet aluminium gear.This allows you to replace just the gear component that fails within the mechanism without having to buy a whole new mechanism at vast expense which would just fail again. Our part is machined to fine tolerances and is a direct replacement for the original and will not fail again. Our part can be fitted simply using our pictorial and video instructions and will resolve the faults noted above caused by the faulty plastic gear. Our kit comes complete with a high quality Cobalt drill bit for separating the panels of the mechanism and stainless steel fasteners for resecuring the mechanism panels. Enabling you to lubricate the mechanism periodically to prevent any future failure. Color: silver material: metal Package Content: 1* CNC machined aluminum gear 8* stainless steel bolts, nuts and washers 1* cobalt drill bit Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!