Feature: 1. POWERFUL FEATURES: Has good characteristics of air permeability, water permeability and self penetrating root system. 2. HIGH PERFORMANCE: As the seedling enters the grow block, the callus absorbs water and initiates a large number of new roots. 3. GOOD EFFECT: The seedlings cultivated by these cubes do not roll root, no slow seedling stage, high survival rate, good quality of seedlings, strong resistance to stress and other characteristics. 4. APPLICABLE SITUATION: Can be widely used for sowing seedling, tissue culture, cutting for fruits, vegetables, flowers, medicinal materials, forest crops. 5. STONE WOOL MATERIAL: Made of stone wool material which has high fiber density makes better use of water and fertilizers while allowing dry back. Specification: Item Type: Grow Cubes Material: Stone Wool Color: As Picture Shown Application: For Plants, Vegetables And Flowers Product Size: Single Size: Approx.5x5x5cm/2.0x2.0x2.0in Gross Weight: Approx.580g/20.5oz. Package List: 45 x Grow Cubes