1.Material: Plastic 2.【161 Pieces Hydroponic Garden Accessories】You will receive a hydroponic seed pod kit, including 30 pieces grow sponges, 30 pieces grow baskets, 60 pieces pod labels, 30 pieces grow domes, 10 pieces hole covers, 1 pair of tweezers, a total of 161 pieces, providing everything you need for your indoor plant growing system. (Tips: Seeds are not included.) 3.【High-Quality Growing Kit】The grow sponge is made of black cotton soil, which is a high-quality growing medium for hydroponic cultivation. The grow basket, hole cover, and grow dome are made of durable plastic material and can be reused after washing. 4.【Compatible with Other Growing Systems】The seed pod kit is compatible with most hydroponic growing systems. You can use them freely in hydroponic systems and seed starting projects. 5.【Easy to Use】Just take out the old hydroponic sponge and replace it with a new one. The root growth sponge provides an easy way for seeds to start. You can note some plant characteristics on the label for observation. 6.【Usage】You can grow whatever you want in the hydroponic growing system, such as herbs, lettuce, peppers, etc. These plant kits will be great gardening gifts for family or friends who like to grow plants.