This growth sponge measures 1.2*0.9*1.4in (3*2.2*3.5cm) before soaking and 1.4*1*1.6in (3.5*2.5*4cm) after soaking. 3.The unique microporous ventilation structure enables a balanced supply of oxygen and moisture, facilitating root penetration for enhanced plant growth and nutrient absorption. 4.The enlarged round table design of the growth sponge provides an increased amount of growth substrate, resulting in a richer source of nutrients that can be released over an extended period. These 7 inch LED halo headlights allows the ambe tun signal to be moe noticeable and vibant to othe dives. ide safe, look bette, and ide longe with the SUPAEE 7 inch headlight with tun signals, upgading couldn’t be easie This growing sponge kit would be a great garden gift for family or friends who love to grow plants, giving them an easy way to grow vegetables, small plants, flowers and more. and can also be used to arrange flowers to make your hydroponic seedling work easier and more enjoyable. Achieve precise compatibility to ensure a smooth planting process 2.Wide Compatibility: It is compatible with various hydroponic systems and is widely used in hydroponics , seed germination , flower arrangement, and vegetable cultivation. It is suitable for both amateur and commercial growers, enabling an efficient planting experience Grow Sponge 50 Pack Round Hydroponic Growth Sponge, Suitable For Indoor Hydroponic Garden Flower Arrangement Seed Germination Vegetable Cultivation Cristales Para Hidroponia 【 High quality growth medium 】 Compared with traditional soil, it is made of natural peat and coconut husk pressed together, with microporous ventilation structure, balancing oxygen and water, but not easy to loose, and does not contain harmful elements. Organic Hydroponics » Garden & Greenhouse 【Widely compatible】This growth sponge is compatible with popular hydroponic systems such as various indoor hydroponic gardens, smart hydroponic systems, and other hydroponic growing systems. The top adopts an open hole design, which does not require manual opening and is more convenient to use. Sponge growth is subjected to high-temperature drying treatment before leaving the factory, making it easy to store. 【 Easy to use and store 】Before use, soak thoroughly for 3-5 minutes and then add the seeds.