Upgrade your 3D printing experience with our 2 Sets of 3D Printer Accessories designed specifically for Kobra3 and for Neptune 4 Max models. These belt tensioners are essential for maintaining optimal tension in your printer's belts, ensuring that your prints come out perfectly every time. Made from high-quality Material, these accessories are and built to last, providing you with a reliable solution for your 3D printing needs. The installation process is straightforward, allowing you to quickly enhance your printer's performance without the need for tools. These accessories are yet robust, making them an ideal addition to your 3D printing toolkit. Whether you're a hobbyist or a professional, these belt tensioners help you achieve better print quality, reduce the risk of print failures, and extend the lifespan of your printer. Don' compromise on your 3D printing projects; invest in our belt tensioners today and experience the difference in your printing results. Perfect for both beginners and experienced users, these accessories are a must-have for anyone looking to improve their 3D printing setup. Colour:Black Material:Metal Package Contents: 2 sets * tensioners 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.