Feature: 1. [Durable Material] Made of high quality stonewool material, which is durable, safe and long service life, so you can use it with confidence. 2. [High Water Permeability] Seedling block has good characteristics of air permeability, water permeability and root penetration. 3. [Simple To Use] Once the seedlings are in the soil, the callus in contact with the soil will immediately absorb water and grow a lot of new roots. 4. [High Efficiency] The bred seedlings have no rolling roots, no slow seedling period, high survival rate, good quality, and strong stress resistance, which greatly improves work efficiency. 5. [Widely Application] Widely used for planting and seedling raising, group breeding, cutting seedling raising of fruits, vegetables, flowers, and other crops. Specification: Item Type: Seedling Block Material: Stonewool Product Single Size: Approx. 4 x 4 x 4 cm / 1.6 x 1.6 x 1.6 in Application: Plants, vegetables, flower seedlings Weight: Approx. 640g / 22.6oz. Package List: 96 x Seedling Block