Made by RUBI, this is normally used for tiling floors, but you could use it for anything where you are working on the ground and need to move around.

Heavy duty metal. Adjustable seat. Tool holder in the middle (kinda small). Comes with wrench to adjust seat position and height.

I bought it from floor and decor for $190 and never used it (ended up hiring someone to do the tile job.) Here's F&Ds description: https://www.flooranddecor.c...