ITEM NAME:2020 X-axis Aluminum Profile Synchronous Belt Stretch Stretching Tensioner Description: Good Material: Made of aluminum alloy material, strong, durable, firm and stable. 3D Printer Part: Useful upgrade parts fit for creality series printer, you can adjust the belt freedom, more better than original. Easy To Operate: Simple combination installation and use. High Technique:Surface anodizing treatment, effective protection, can extend the service life. Suitable For: Aluminum profile printers such as Y-Axis. Specification: Model Number: Belt Stretching Item Type: Wheelset/Wheels Name: 2020 aluminum profile X-axis synchronous belt stretching Material: Aluminum Alloy Surface Treatment: Anodizing Color: Black Dimensions: 15x10x4cm / 5.9x0.94x1.57 inch Applicable To: X3 3D printers Package Includes: 1 Piece 2020 X-axis Synchronous Belt Tensioner Note: Due to the difference between different monitors,the picture may not reflect the actual color of the item. Due to different personal measuring techniques,there might be 1-3cm error of the physical.Thank you!.1 Piece 2020 X-axis Synchronous Belt Tensioner. Model Number: Belt Stretching. Suitable For: Aluminum profile printers such as Y-Axis. 3D Printer Part: Useful upgrade parts fit for creality series printer, you can adjust the belt freedom, more better than original.