With this replacement set, you can easily replace damaged parts and keep your running smoothly. The coupling gear is designed to fit perfectly with the , ensuring that it operates . Features -Color:Black -Material:PP, iron -Size:3.70X3.70X1.50cm/1.45X1.45X0.59in(Coupler) -Size:11.50X2.50X0.20cm/4.52X0.98X0.08in(Spanner) -These replacement parts are specifically designed to fit perfectly with your , ensuring optimal performance and efficiency. -With these components in place, you can enjoy smooth and seamless operation of your , without any interruptions. -Installation is a breeze with these components, as they are designed to be easy to install and require no special tools or expertise. -Maintenance is also easy with these components, as they are and long-lasting, requiring minimal upkeep and replacement. -This set includes couplers and wrench, all of which are essential for keeping your in top condition. Package list: 4 x coupler 1 x spanner