M-D Building Products 5991 M-D 0 Dual U-Shape Door Bottom, 1-3/4 in W X 36 in L Product Description This item is a M-D Building Products 5991 U-Shaped Door Bottom with Vinyl Fins CDB 134, 36 Inches, Brown. Purpose of use for Building Materials Ladders, household-door-sills. This product is manufactured in United States. From the Manufacturer Durable vinyl door bottom has soft vinyl fins to seal against top of threshold and sill. Great for steel doors. Features This item is a M-D Building Products 5991 U-Shaped Door Bottom with Vinyl Fins CDB 134, 36 Inches, Brown Purpose of use for Building Materials Ladders, household-door-sills This product is manufactured in United States All season protection against drafts, moisture, dust and insects Multiple vinyl fins provide a weathertight seal Slotted screw holes for easy adjustment; seals gaps up to 7/16 inch high; fits 1-3/4" doors Fasteners included 1-1/2-inches high by 36 inches long USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.