These are recyclable 6 pack growing packs as used by professionals in the industry. These have replaced the traditional polystyrene trays as these are now recyclable so are much better for the planet. each pack has 6 cells with each cell measuring 7cmx6cmx6cm.

These are great for sowing seeds or potting up plugs into and growing them on ready to be planted out in the garden. 

Other quantities are available.