Feature:1. Premium Material: This X axis belt tensioner is made from premium aluminium alloy, adopting surface treatment, providing high durability.2. Easy Installation: The belt tensioner is pre assembled, which is very easy and convenient to install and operate.3. Adjustable Belt Tension: The belt tension could be adjusted, which can effectively improve the printing quality.4. Wide Compatibility: This belt tensioner is suitable for Ender 3, for Ender 3 Pro, for CR10, for CR10S, for CR10 S5.5. Stable Performance: This belt tensioner with premium material and exquisite workmanship provides stable performance.Specification:Item Type: X Axis Belt TensionerMaterial: Aluminium AlloySurface Treatment: Anodic OxidationColour: BlackFunction: Belt TightnessCompatibility: Suitable for Ender 3, for Ender 3 Pro, for CR10, for CR10S, for CR10 S5..Package List:1 xX Axis Belt Tensioner2 x Screws2 x NutsNote:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.