- Contents and Size: This product includes 50 growth sponges, designed to cater to your daily hydroponic planting needs. Each sponge measures approximately 5.3 x 1.6 x 1 cm (2.1 x 0.6 x 0.4 inches) before soaking and expands to about 6.8 x 2 x 1.3 cm (2.7 x 0.8 x 0.5 inches) after soaking. - Dry Processing: The root growth sponge plugs are packaged dry for ease of transport. Once soaked in water, the seed pods become active and expand, promoting optimal plant growth. - Premium Material: Made from high-quality sphagnum peat, these seed starter plugs provide excellent support for seed germination. The sponge seed sleeves allow for effortless transplantation of seedlings into the soil once rooted. They are eco-friendly and fully degradable, ensuring a sustainable planting solution. - Easy to Use: Utilizing the growth sponges is straightforward; no tools are required. Simply replace old sponges with new ones. Each seed pod features a closed bottom, preventing seeds from falling into the water and ensuring successful growth. - Practical Applications: 1. Ideal for hobby gardeners starting seeds indoors, allowing for quick transitions to outdoor planting. 2. Perfect for educational projects or classroom settings where students can learn about plant growth in a hands-on manner. 3. Great for small-scale hydroponics setups, maximizing space while ensuring healthy root development. This product is designed for those seeking an efficient, reliable, and environmentally responsible way to start their gardening journey.