The No Holes Bar is a simple but very sturdy grow light stand that is designed for indoor gardening and also works well in green houses. With this product any simple hydroponic system can be transformed into a commercial hydroponic system with only one rack and a 2 x 4 cut to a desired length. The No Holes Bar Basic Model is great for bucket systems or any system that does not require tray support. The Basic model is a grow light rack/stand with only one 2 x 4 to hang your lights, fans, ventilation, etc. Weight limit is 200 lbs. Adjustable from 4' to 8' in 6" increments.