his is the perfect grow bag support frame, simply place the frame under your grow bag and then put your canes through the desired support ring and in to the soil. No tying required, the support rings take any size cane and ensure they stay in place. The frame has fixed cane support rings suitable for either 2, 3 or 4 canes. It is made from strong plastic coated steel for a longer life and it can be used in conjunction with either out reusable grow bag, salad bag or our grow bag tray.