Biodegradeable eliminates transpland shock. Premium peat pots are uniquely durable for easier handling. Returns to shape ever after being crushed. Absorgs water instantly without wasting time. Extra porous to promote air and water transfer for healthy root growth. It is biodegradeable and also eliminates transplant shock. Totally enclosed pot encourages even and complete root growth. Measures 3-inch diameter. Includes 15 pots per pack.