50Pcs 25x25x25mm Ventilative Hydroponic Grow Agricultural Media Cubes Mini Blocks Planting Soilless Cultivation Base

Features: Made from molten rock spun into cotton candy-like fibers and then compressed into cubes. After high temperature treatment non-toxic and sterile. The bulk density is small the texture is light and the porosity is large. Good air permeability strong water absorption and good drainage. Suitable for the cultivation and colonization of all kinds of plants. Great choice for soilless planting. Specifications: Material: rock wool Color: green Quantity: 50pcs Size: about 25x25x25mm Package includes: 50pcs* Rock wool cubes Notes: 1. Due to the different monitor and light effect the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-3cm measuring deviation due to manual measurement.