Biodegradable Material: The material of the pulp bin is paper and charcoal. It contains plant fibers such as nitrogen, phosphorus and potassium, which are easily degraded and can be transformed into organic fertilizer. Features: Once the seed tray is degraded, it becomes fertilizer organic, and this layer of degradation material is easy to absorb water, has good air permeability, and is easy to integrate with the soil, which improves the ecological environment around the seedling root and is beneficial for the growth of seedlings. Suitable for beginners: suitable for beginners to plant seedlings, without manually removing the soil of the seedlings out of the cup, it can be planted directly without damaging the seedlings, which can be used for indoor or outdoor planting. Seed tray for spring, summer, autumn and winter. Multi-purpose: very suitable for seeds, vegetables, plants, flowers and seedlings. The roots of the seedlings can easily spread out of the pot, which overcomes the problems of interlocking roots, twisted roots, bent roots and rotten roots produced by plastic pots.