UPGRADED MATERIALS 6x8FT polycarbonate greenhouse is constructed using a premium aluminum alloy frame, along with reinforced rods on the sides and diagonal rod fixation for enhanced sturdiness and loadbearing capacity; Doublewall polycarbonate boards with 4mm UV protection effectively blocks 99 of UV radiation to protect your plants CUSTOM ADJUSTMENT This heavy duty green house features two adjustable skylights with various opening angles available, creating optimal air circulation system to sustain indoor ventilation and cooling; Innovative sliding door allows for seamless opening and closing, and saves more space than traditional ones FIXATION MEASURES We recommend placing the bottom frame in a predug trench after securing the board with expansion screws include to the ground for greater stability and temperature chamber wind resistance; Recommended to apply glass glue to the connection between PC board and frame for better water protection; When the weather is bad, we recommend that the precious items in the greenhouse be removed to avoid unnecessary property loss and do not use greenhouse during the time ALL SEASON GREENHOUSE Top tilt angle design of the polycarbonate aluminum greenhouse helps to achieve effective wind resistance and drainage capacity; This beautiful and convenient product is perfect for gardens, decks, and backyards for yearround plant cultivation and protection EASY TO INSTALL Enjoy easy installation of this walkin greenhouse with all instructions included; You can add a lock for the door for enhanced protection; This product is divided into 2 packages and may not arrive together so please wait patiently