Jiffy-7C Peat Coir Plug 39x39mm

How do Jiffy Coco Coir Plugs work?

39 mm Single Pellets, 70%CP, 30% Peat mix,  PLA net, 1000 Pellets per Carton, 50 Cartons per Pallet, 50,000 Pellets per Pallet, pallets are stackable.
Dry 39 mm, wet 40 mm +/- 2

From Sri Lanka

Height: 38cm | Length: 19cm | Width: 20cm | Pack Quantity: 1 | Box Quantity: 1536