Small Stackable Tables

I needed a couple of stackable tables to place a NAS, external drives, and WIFI router on.
The tables are 220 x 220 x 100 and 220 x 220 x 220. They use a peg to keep them from falling off of each other.
You can stack as many as you like, as long as you use the pegs.
You can resize the height, but make sure you resize the pegs accordingly.
The default hole depth is 10mm deep.
Supports are needed for the peg holes in the tabletop(s).