Seed Pods Compatible with Most Hydroponic Indoor Gardens – These grow sponges are compatible with various hydroponic systems, including AeroGarden and similar models. Our seed pod kit is suitable for indoor hydroponic gardens or outdoor soil planting. Once rooted, seedlings can be easily transplanted into soil. Healthy Root Development – The organic hydroponic grow sponges are made from high-quality peat moss, offering excellent structure and strong water wicking properties. They provide seeds with an optimal balance of oxygen and moisture for enhanced germination and healthy root growth. Ideal for use in hydroponic growing systems to support reliable seed starting and robust root development. Designed with Hole – The top of each grow sponge features a small hole to securely hold seeds in place, preventing them from falling into the water reservoir. Simply soak the sponges in water for 3–5 minutes, place a seed in the center hole, then insert the pod into your hydroponic system and wait for germination to begin. 50-Pack Grow Sponges – This set includes 50 replacement grow sponges. The generous quantity is ideal for starting multiple seeds at once, making it efficient and time-saving for your gardening needs. All sponges are thoroughly dried before shipping to help prevent mold. Grow a Variety of Plants – Use these premium grow sponges to cultivate herbs, lettuce, strawberries, peppers, cilantro, flowers, and more in hydroponic systems. These rooting sponges offer an effective solution for seed propagation and make a thoughtful gift for plant-loving friends and family. Color: Dark Brown Material: Sponge Size: 5.5 cm Package Contents: 50 x Grow Sponges Note: Only the items listed above are included. Light reflection and display differences may cause slight color variations between the image and the actual product. Measurement may vary by +/- 1–3 cm.