Specification: Features 1. The hydroponic growth medium sponge is very easy to use. You will get 100 sponges. They are ideal for starting new plants from or hydroponics 2. Sponge is a good sprouting agent. Even if you don't have related expertise, you can still use them easily. 3. They are good for most , such as fruits, beans, vegetables, grains, flowers, etc. 4. Sponges are eco friendly and non-toxic. Their color is ivory, but when they come into contacting with air, they may turn pale yellow. This is normal. It will not affect the use of sponges. Specification Material: Sponge Color: White Size: Dia 25mm/ 32mm/ 40mm/ 50mm Package Includes: 100 x Hydroponics Sponge Note: 1. Please allow 1-3cm differences due to manual measurement. Maybe 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. Package List: Package Includes: 100 x Hydroponics Sponge |