The P SCROG 4x4 is a modular trellis/ScrOG frame that captures 4 clear polycarbonate screens each. The frames are designed such that the screens can "pop in and pop out" and can capture either Primary screens (3.25" openings [8.26 cm]) or Pro screens (5" openings [12.70 cm]) or a combination of the two. The modular design allows individual plant care in a 4x4 footprint. Frames can be suspended, affixed to walls, attached to legs or a variety of different methods to accommodate most growing environments.The anodized aluminum frames can be daisy chained 4x8 to 4 x ∞ hovered over tables, trays, etc. to create a rigid and highly effective and efficient trellis/ScrOG structure to be used over and over again. All surfaces are non porous and easily cleaned. Single hung, double hung or more, The P SCROG 4x4 is a breakthrough in canopy management. Kit includes: 1 ea. - satin finish anodized aluminum frame assembled measurements 42.25" (107.32 cm) x 43.00" (109.22 cm), assembled weight 4 lbs. (1.81 kilos) 1 ea. - package of 6 stainless steel pan head phillips screws and 6 stainless steel wing nuts 4 ea. - polycarbonate screens with 3.25" (8.26 cm) openings or 4 polycarbonate screens with 5" (12.70 cm) openings - Optional leg clamps and hardware and optional furniture grade PVC legs available.