Check the listing for details. 100pcs/sheet Square Soilless Hydroponic Sponge for Greenhouse Vegetable Planting. Condition: New. Listed at 2.79 USD. 100pcs/sheet Garden Cultivation Plant White Sponge Soilless Culture Planting Hydroponic Vegetables Nursery Pots Cloning Collar Product Description:Type: Nursery PotsModel Number: Cotton Plant Starts toolMaterial: spongeScope: gardening plant breeding nursery tools Advantages: Facilitate the transplant survival rate is highColor: WhitePlastic Type: PU sponge Packaging DetailsUnit Type: lot (1 sheet =100 pieces/lot) ( One sheet consists of 100 small square sponge blocks )The size of the whole block: 250mm x 250mm x 25mm (9.84in x 9.84in x 0.98in)The size of a single small sponge is: 25mm * 25mm * 25mm Note:1.Please allow 1-2cm error due to manual measurement.2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!