4-Pack 3D Printer Silicone Leveling Column Solid Bed Mount Stable Tool Heat-Resistant Silicone Buffer for Prusa i3 Plus, Anet A8 Wanhao D9, Anycubic Mega, Ender 5 Plus Heatbed

I purchased these to replace my yellow springs (which I'd purchased about a year ago to replace my stock springs) in the hope that I'd not need to re-level my so often).And so far they've kept the bed nice and snug and it's not needed leveling once.I was very surprised at how much compression they take but they really do squish right up really tight.My only tip - double check that you order the correct ones for your machine and put the slightly shorter one back left over the cable restraint.

Replaced the springs on the heat bed on my 3d printer with these and they are much better. More stable and have yet to re level the bed.

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very simple to fit bought them to replace the standard springs as the bed needs re leveing quite often. had thease on for a week now and not had to adjust the bed at all