Features: These red aluminum nuts are original upgraded replacement part for all the FDM 3D printers. Used for 3D Printer Upgraded Hand Twist Leveling Nut For Hot bed and Make the Hot Bed Become more stable, It will be more easier to level for print platform. The torque of these nuts is large, making it easier to fine tune the hot bed. Metal nut is more powerful and will twist more tightly than plastic nuts. Apply for 3D printer hot bed/ platform, the red nuts are original upgraded replacement part for Ender 3/3 Pro/3 X, Ender 5/5 plus/ 5 pro, CR-10, CR-10 V2, CR-10 max, CR 10, CR-10 mini, CR-10S, CR 10S Pro, CR-10 plus, CR-X, CR 20. Specification: Material: Aluminium Alloy Diameter: approx.60mm/2.36in Nut Color: Red Suitable for: Ender 3/ 3 Pro/ 3 X, Ender 5/ 5 Plus/ 5 Pro, CR-10, CR-10 V2, CR-10 Max, CR 10, CR-10 Mini, CR-10S, CR 10S Pro, CR-10 Plus, CR-X, CR 20 Quantity: 1 Set Note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package Contents: 4 x Hand Twist Leveling Nuts 4 x Die Springs (other accessories demo in the picture is not included.)