Sell Upgraded 3D Printer Parts Adjustable Y-axis Synchronous Belt Stretch Straighten Tensioner for Ender 3 Pro 3D Printer best price

4040 aluminum profile Y-axis synchronous belt stretching fit for Ender 3 pro 3d printer, Please Note: Not fit for Ender 3, Ender 3X, Ender 5 Material: SPCC Steel. Match with 6mm belt, upgrade the tension tensicner to adjust the belt freedom, much better than originak, very practical It comes as a set of Y-axis belt stretch kit, you need to install it by yourself, Reference instruntion please search keywords on Youttube: bczamd ender 3 pro belt tensioner. Package includes: 1 x Y-axis belt stretch kit for ender3 pro