Over the past few years I’ve acquired a variety of Vevor products after I was into ally very impressed with the overall value provided by their products. They were generally higher quality than I expected for the price, which was a nice change in an era of “throw away” products. That said, over time the product quality seemed to fall off a bit… which concerned me a bit given my previous experiences. Fortunately, this product has all the hallmarks of being a good value. The quality of these bags is great - The plastic used is heavy duty and thick, and the seams are thoroughly fused and consistent. Overall, the size of these bags is a little smaller than what I expected, however… which means they empty quite quickly when compared to larger alternatives. While they come close to functioning as described in the product listing, expect the drain time to be closer to lower end of the range cited (usually around four hours). These will, undoubtedly, help heat sensitive trees avoid getting excessively scorched in the peak of summer. So, I’m glad I have them on hand. That said, I do wish these were a touch larger and had a little longer release time. 4/5 stars, overall!