[Improved printing] achieve better printing quality, refining the synchronous belt tension with this tensioner.; [Versatile use] is suitable for use with Ender 3, Ender 3 Pro, CR 10, CR 10S and other compatible 3D printer .; [Optimal performance] Provide the ideal voltage in the timing belt to get smooth and efficient printing results with this tensioner.; [Installation of problems] is initially assembled with a hexagonal key, which facilitates installation and use on a 3D printer.; [Long -lasting material] constructed of durable ABS plastic, which is to wear and scratches, ensuring longevity.

What's in the box
1 x 3D Printer Accessories