This modular design trellis can be used in grow tents. Made from soft elastic rubber netting, it has 36 six-inch square mesh openings that will gently yet firmly maintain your plants in a proper upright position as they become heavy through the flowering process. It includes four hooks that will secure it to the support rods in your tent. You can adjust the tautness by placing the hooks on the mesh openings of your choice. Can also be used vertically.