Riser anchor combos and standalone 40mm risers for Elegoo Phecda lasers. They are designed to fit the 24mm legs of a Phecda. I don't know if they're compatible with other brands.

I installed the feet anchors on all 4 legs, marked their positions on the workspace. I then removed the anchors from the laser and screwed them into the marked positions. With the anchors secure I then placed the laser onto them.