Bullet Points: 1; Grow Sponges: Our growing sponges are compatible with most indoor hydroponic gardens and are suitable for indoor hydroponic growing gardens or outdoor soil growing. After it takes root; it can be easily transplanted into the soil. 2; Healthy Root Development: Our hydroponic sponges are made of high-quality peat; which is well-shaped and highly absorbent; providing oxygen and water to seeds and promoting plant growth. 3; Perforated Design: Each growth sponge has a small hole at the top that allows you to put seeds in it to ensure that the seeds don't fall into the water. It can be soaked in water for 3-5 minutes before use. 4; Widely Used: Our seed growth sponges are suitable for most plants; such as herbs; flowers; fruits; vegetables; etc. It has enough quantities to meet your requirements for quickly starting many seed hydroponics; saving you a lot of time. 5; Customer Guarantee: We advocate the tenet of "Customer First". Our customer service is 24-hours Online; and you can contact us at any time when you encounter problems. Description: Our growing sponges are compatible with most indoor hydroponic gardens and are suitable for indoor hydroponic growing gardens or outdoor soil growing. After it takes root; it can be easily transplanted into the soil. It has a small hole at the top; which is very convenient to put seeds in. You need to soak it in water for 3-5 minutes before using it and put the seeds in the middle hole. This seed starter seedling pod is suitable for herbs; fruits; vegetables; flowers; and other plants. It is an easy way to root seeds and would make a great gift for family or friends who love to grow plants. Specification: Product Name: Replacement Root Growth Sponges Size: 0.79*2.16in Packing List: A pack of Growth Sponges (20/50/80 quantity optional)