Trillium Heavy Duty model is an extra durable unit for locations where extra abuse is common such as at grocery stores, fairgrounds, and events. The unit consists of a heavy duty PVC frame, including 2 squares and 4 vertical poles. The lid is heavy duty, and is made of material 50% thicker than the standard model, and has a UV resistant coating. There is a top sign with instructions of what is being recycled. Also included is a skirt sign for marketing or revenue generating advertisement. It includes a patented box of bags, with the bags connected for easy replacement. The bags are 1.2 mil lldpe premium bag that are ultra clear. Replacement bags available. Made in the USA!