ALECO Energy-Saving Heavy-Duty Strip Doors in Bulk Rolls save you money. Do you own cutting and hole punching. Offer 2-way visibility for safety, substantially reduce the loss of heated and cooled air, and prevent the flow of dust and contaminants from parking or loading areas. Clean-up and maintenance costs are reduced, and sound transmission is effectively lowered to help you meet OSHA requirements. Doors are made of fire-resistant, self-extinguishing PVC. Clear-Flex II® rounded edges won’t cut, non-stick additive prevents clinging. Choose either economical smooth vinyl strips for excellent visibility or Scratch-Guard® strips that have bumpers to resist scratches and abrasions—stay clearer longer. Units are shipped knocked-down with installation instructions.Made in USA. NOTE: ALECO Energy-Saving Heavy-Duty Strip Doors in Bulk Rolls are not available online. Call a Certified Specialist to order.