8 Pieces 3D Printer Heatbed Parts Silicone Leveling Solid Bed Mount 3D Printer Heatbed Part Stable Hotbed Heat-Resistant Buffer Compatible with CR-10 Ender 3 Bottom Connect (Black,0.63 Inch, 0.7 Inch)

I got these because even with the yellow bed springs, I was having to adjust the level after removing parts from the heat bed. After using these rubber mounts and tightening them down with a little bit of crush the bed seems much more firm and I get less rocking during the print and havent had to touch the level in several prints. This seems to be an improvement over both stock and the yelllow spring upgrade. Worth the money.

Yea these are what your looking, if you need one smaller, slice a bit off.

They seem high quality unfortunately, they’re not compatible with the Ender 3 Max, they’re too short.

I installed these bed spacers with a BLtouch auto leveling gadget and my aggravation with 3d printing was greatly reduced. Easy to install and inexpensive. 10/10 would buy again.