Herb pot 100 mm in its 130 mm saucer — a kitchen-windowsill pair for one herb plant, the pot on ribs above the water, 108.4 mm tall in all.

The Herb pot 100 mm standing in the Plant saucer 130 mm made for it: as tall as it is wide, 100 mm, in a saucer 30 mm wider, with 15 mm all round to catch what drains out.

Seven 6 mm drainage holes let water through, and six ribs hold the pot clear of it, so a pot of basil, parsley, chives or mint keeps the kitchen windowsill dry. Tip out what collects after watering.

Top to bottom. Every piece is the same width and depth, which is what lets them stack: tabs on top of each drawer drop into recesses under the piece above it.

Each version keeps its own size, file and license. An earlier version stays available if this one changes.