Hydroponics Seed Growing Media Sponges is very easy to use. You will get 20pcs sponges.
Dimension: The sponge's diameter is about 50mm, the height is about 30mm. They fit for the 3" net cup pots baskets.
- Sponge block recesses for easily clip seedlings.
- They can fit for most seeds
- Environmentally friendly material
Application: Suitable for fruits, beans, vegetables, cereals, flowers and so on.