FYSETC 3D Printer Heatbed Parts, Solid Bed Mounts, OD 0.63 in ID 0.16 in Stable Hotbed Tool Heat-Resistant Silicone Buffer for CR-10 Ender 3 Bottom Connect, 4 Pcs

Model is 3 high and 1 short, black(don’t include Print firmware). Please Note: before install, you need to print two firmware( please search “3742788” in Thingiverse to have it), Automatic leveling sensor is need. Please reference Picture.
These silicone buffers serve to replace on your heating bed original springs and it is no longer possible movement, your set levels remain!
This heat-resistant and pressure-resistant silicone leveling column with a 4mm inner diameter makes it easier to level your 3D printer.
New upgraded 3d printing leveling tool with two different colors to choose.