Fangrui Product Details Introducing Our Premium White Hydroponic Planting Sponge, Designed Specifically For Seedling Propagation And Transplanting. Each Sponge Measures 50mm X 30mm, Making It The Size For A Variety Of Plants. Made From High-quality Plastic, These Sponges Are Durable And Provide Excellent Support For Young Plants. The Unique Design Allows For Optimal Water Retention And Aeration, Promoting Healthy Root Development. Whether Youre A Seasoned Gardener Or Just Starting Out, These Planting Sponges Are An Essential Tool For Your Hydroponic Garden. They Are Easy To Use; Simply Place Your Seeds In The Sponge, And Watch Them Grow! The White Color Not Only Looks Clean And Professional But Also Reflects Light, Helping To Maintain A Stable Temperature For Your Seedlings. Ideal For Indoor And Outdoor Gardening, These Sponges Are Compatible With Various Hydroponic Systems. With Our Hydroponic Planting Sponges, You Can Achieve Higher Germination Rates And Healthier Plants. Say Goodbye To Traditional Soil Planting And E