Package Includes: 5 Packs X Leveling Components M3 Screw Kit (No retail package) | .
100% brand new and high quality.
This is for 5 kits of M3*40mm leveling screw spring kit for 3D printer leveling components.
Auto leveling nuts for 3D printers, 4pcs/ pack.
Compatible with Creality CR-10/ CR-10s/ mini ender 3 3D printers.
High-quality plastic material, durable and sturdy.
Durable and practical
Round tooth profile guarantees that the belt tooth fits smoothly
GT2 Pulley and GT2 Belt are used together,very convenient to use