The Access Limited Edition Soft Roll-Up Tonneau Cover is the trinity of goodness, strong, durable and secure. The tonneau itself is UV resistant and coated twice to produce commercial grade vinyl. Still flexible at under -40 degrees Celsius, it won't shrink or fade when exposed to the heat or to the toughest of climates. The Limited Edition boasts an all-aluminum construction, and finished off black anodized materials. The clamps inside the bed rails are composed of sturdy aircraft grade aluminum metal. Made with specially cut teeth that help maintain grip in your truck bed giving these clamps exceptional strength and unsurpassed quality!