The product is actually really good for the price and meets my expectations, however it is better after I changed a few things. The distance at the handle is too big, so I inserted a small washer to make it stable. The pre-drilled holes are stupid, the screw sticks up and possibly causes damage to the thermal blanket. They should sit in the recess, as it actually also appears in the manual. I made some myself and the roll was rock solid. The accompanying sandbags stain violently (green color) so they were washed several times in a tub. Do not put them in the washing machine. Otherwise, I am very satisfied with the product.