Feature: 1. Good Performance: This seedling growth block has good breathability, water permeability and root self osmosis characteristics, helping to cultivate high quality seedlings. 2. Efficient: 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, which greatly improves work efficiency. 3. High Quality: The seedlings cultivated by the growth block have no root curling, no slow seedling period, high survival rate, good seedling quality, strong stress resistance, etc. 4. Multi Purpose: It can be widely used for planting, tissue culture and cutting seedlings of fruits, vegetables, flowers, medicinal materials, sapling and other crops. 5. Sufficient Quantity: Contains a total of 16 cutting seedling blocks, sufficient in quantity to meet your needs, high quality rock wool material, providing a good environment for seeds. Specification: Item Type: Grow Block Product Material: Rock Wool Single Product Size: Approx. 7.5 x 6.5cm / 3 x 2.6in Weight: Approx. 580g/20.4oz Scope of Application: Cutting Seedlings of Plants, Vegetables and Flowers. Package List: 16 x Grow Block Note: Manual measurement, please allow 0.4‑0.7in error.