This is a bracket for mounting a Hammer or Mallet, potentially some other similar shape tools, to a standard 1/4" thick pegboard with 1/4" diameter holes spaced 1" apart. I printed mine with 1.2mm thick walls, 20% Gyroid infill out of PLA. I designed it to be easy to print. If you print with the top face on the build-plate and turn supports on, you will just have a couple small supports between the pegs to breakaway. I hope you find it useful.