SUNYUM Hydroponics Sponges Seed Growing Media Cylindric Sponges 12x13 for 18 Mesh Net Pots Insert Cylindrical Foams Garden Plants Germination Kits Pack of 100 18

Using Tips: 1.The sponge is environmentally friendly and non-toxic. 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. Package included: 100 pcs Cylindrical Sponges. Please Note: 1. Please allow 1-3mm differences due to manual measurement. May be Some pictures look like larger size,please notice the exact items size. 2. Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same. Hope you can understand.