Description from Manufactum
Nursery. Space for 70 seedlings.
In order to breed seedlings, this “tray,” with an elevated side, can be quite useful, as it can hold up to 70 conically formed, small steel frames (individual slots without a base). Filled with soil beforehand, the slots are ready for the seedlings to be directly sowed in; cuttings or individual seedlings can be placed in the small trays. Because the little pots rest only loosely on the tray, they can easily be removed at any time without damaging in the process the sensitive roots of the seedlings or young plants; the conical form makes it easy not only to press out the roots but also to replant them in a garden patch or pot.
Cultivating next to the windowsill.
With its noticeably narrow dimensions, the smaller tray can easily be placed next to any windowsill, so that you, for example, can grow tomatoes in your apartment instead of out on the deck.