Peat pellets 

(aka Jiffy seed starters or grow pellets) were designed to make starting seeds easier and more convenient for gardeners. They look like small soil discs, and are made from compressed peat moss. All you have to do is add water to rehydrate the soil and the pellets expand to create a self-contained pot. ... All you need are the seeds and some water.

Dry pellet: diameter 3,5 cm, height 1 cm

Wet pellet: diameter 4,2 cm, height 7cm

Quantity: 10 pieces