Optimized Performance: Specifically designed for the 3 3D printers, this belt tensioner ensures improved print quality by maintaining optimal tension on the Y- synchronous belts. Compatibility: Perfectly fits 2040 aluminum profiles, making it a versatile upgrade for various machine configurations. Construction: Crafted from materials, the tensioner withstands rigorous use, ensuring long-term reliability and performance. Easy Installation: Engineered for straightforward installation, this tensioner allows for quick and easy setup without needing extensive modifications. Color: Black Material: Metal Package Contents: 1 * Belt adjuster Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.