Gibbon should be more open with the product description. I measured one part as 39 inches and the other part as 39.5 inches. Basically you need both parts for the same tree as most reviews say. Gibbons should just put it on the packaging. So for two trees, order two boxes (so you have 4 pieces). Otherwise it is a practical product. You can probably buy the fabric and sew velcro on it to save money but I'm not good at sewing so I'm hesitant to buy another set.
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