M4 Metal Screw Nuts Heated Bed Spring Knob Leveling Kits For CR10 3D Printer Hotbed

Feature:

1. M4 screw Leveling spring knob

2. DIY Leveling Modules

3. 3D Printer Accessories

4. M4 Screw Heatbed Kit

5. Compatible with prusa i3 MK3 CR-10 hot bed and other hotbed

Package Included: 4* Adjustment Nut+4*Springs+4*M4 Screw