【Package List】4pcs aluminum hand twist leveling nut,4pcs yellow die springs,4pcs 45mm screws, 4 pieces silicone leveling column（3*18 mm and 1*16 mm lower）【Widely Compatible 】Upgraded aluminum hand twist level. Suitable for Ender 3/3 Pro/3 V2/3 Max, Ender 5/5 Plus/ 5 Pro, CR-10, CR-10 V2, CR-10 V3,CR-10 Max, CR 10, CR-10 Mini, CR-10S, CR 10S Pro,CR 10S Pro V2, CR-10 Plus, CR-X, CR 20.【High Quality】This Ender 3 bed leveling kit is made of high quality aluminum. It is stronger, and it will twist more tightly than plastic nuts.【Easy to use】Just take off the old one and put on nuts and springs. Also the torque of these nuts is large, making it easier to fine tune the hot bed.