Feature 13D PRINTER PARTS: The belt straighten tensioner is 3D printer X axes accessory that can be used to adjust the synchronous belt degree of freedom. 2BELT ADJUSTMENT: The straighten tensioner can be used to freely adjust the synchronous belt tension, which can greatly improve the printing efficiency. 3NO ASSEMBLY: This X axes drive belt tensioner is assembled and comes with a hex wrench, installed on the printer to use, no additional tools required. 4APPLICABLE MODEL: This tensioner is suitable for Ender 3, for Ender 3 pro, for CR 10, for CR 10S and other 3D printer models, which has strong compatibility. 5PLASTIC MATERIAL: Made of excellent ABS plastic, light weight without adding weight, which is wear resistant and scratch resistant and has a long service life.SpecificationItem Type: Straighten TensionerProduct Material: ABSApplicable Models: Suitable for Ender 3, for Ender 3 pro, for CR 10, for CR 10S, etc.Product Size: Approx. 22 x 26 x 62mm / 0.9 x 1 x 2.4in .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Straighten Tensioner1 x Hex Wrench