CoolSeal USA's recyclable polypropylene and patented die cutting / assembly process was used to assist with open filed crop pollination through the facilitation of seasonal bumblebee hives. The weather-proof and thermal barrier characteristics of polypropylene make for a perfect material that will not fail under inclement weather conditions that prove too difficult for Kraft corrugate paperboard. The insulative properties of our heat sealed edge technology also assist in maintaining ideal temperatures for the bees to thrive. Lightweight, Durable and weather-proof … a combination proving ideal for open field horticulture and in this application help natures pollinators.