Heavy-Duty Alloy Steel Frame – Built with durable alloy steel tubing for long-term strength and stability; supports lights, filters, and fans without bending or sagging.orners of Your Home Premium Mylar Reflective Interior – Features high-density 600D Oxford fabric lined with reflective Mylar to maximise light efficiency and plant growth while reducing waste. Multi-Port Ventilation System – Equipped with multiple ducting and cable ports to support powerful air circulation setups and flexible equipment arrangements. Convenient Observation Window – Includes a clear viewing panel that allows you to monitor your plants without disturbing the internal environment or exposing them to external light. Lightproof and Leak-Free Design – Double-stitched seams, heavy-duty zippers, and a reinforced structure ensure a 99% light-sealed interior to protect plant cycles. Tool-Free Assembly and Setup – Easy to assemble with no tools required; intuitive design makes setup straightforward, even for first-time indoor growers. Perfect Size for Versatile Use – Ideal 100×100×200 cm footprint suits small-scale hydroponics, herbs, seedlings, or vertical gardening in compact indoor spaces.