LAPOND 100Pcs Hydroponic Sponge Planting Gardening Tool Square Seedling Sponges for Small Bud Growth or Grow Seedlings

Color: Ivory White Material: PU sponge Sponge Diameter: each small sponges size: 25*25*25 mm. Sponge hole size:10 mm The depth of the hole:12-15 mm Using Tips: 1.The sponge is environmentally friendly . Their color is ivory white but when they touch the air, the color may become the light yellow. This case is normal. It won't influence the using of the sponge. Please don't worry. 2.Before using the sponge, please soak it for about 1-2 hours and squeeze out the water.Then making the sponge wet with the clean water. 3.Soaking the seeds for several hours to make them drink enough water. 4.Germination for most seeds should be keep away from the light. After the seeds grow 4-5 leaves, you can move them to the net cups pots.