The updated simple seedling tray with water passages

Pot size is 38mm x 38mm x 43mm Total size for the quad tray is 106mm x 106mm x 45mm Total size for the single tray is 66mm x 66mm x 45mm

The seedling tray insert makes plant extraction really easy

The plant ID peg is designed to fit 65UP labels (38.1mm x 21.2mm x 65) Example: Avery L7651 mini laser labels - https://www.avery.co.uk/product/mini-address-labels-l7651-25

Modify to your liking on Tinkercad - Seedling Tray Quad v2 - https://www.tinkercad.com/things/lwLo0JWDa0v

Seedling Tray Single v2 - https://www.tinkercad.com/things/5bunRhCndFO

Seedling Tray v2 Insert - https://www.tinkercad.com/things/1DEEc4F99Am

Plant ID Peg - https://www.tinkercad.com/things/31KVZDRHomM