3 D 3D Printer Leveling Nut Kit and Springs Heatbed -10 Ender-3 Adjustment
Portable Practical Reprap MK2B Heatbed MK2B Heat Bed 3D Printer. And our knobs are made of plastic material, make the leveling is safer and does not hurt the hand. The torque of the hand is large, making it easier to fine tune the hot bed.