OGrow Extra Large Heavy Duty WALK-IN 2 Tier 12 Shelf Portable Lawn and Garden Greenhouse Constructed with heavy duty powder-coated steel shelving New added feature! This portable greenhouse now includes an anchoring system, which will securely anchor the greenhouse to the ground using strong ropes with deep rooting anchors that will guarantee sturdiness even in the worst of weathers!! Strong and durable shelving will hold your heavy plantings Walk-In for easy access to your plantings. - Roll up door for easy access, ventilation, and moisture control No hardware needed for assembly! Designed with special heavy duty high quality plastic connectors for easy assembly.