ULTIMATE Tailgate Seal prevents the outside elements from invading your truck bed when you're using a lid, topper or tonneau cover to protect your gear. 3M Adhesive width is .500 ". >> Forms a tight seal around your tailgate >> Prevents rain, snow, and dirt from entering through the gate >> Made of all-weather, automotive grade EPDM rubber >> Easy peel-and-stick installation in minutes >> Easy-to-follow instructions included >> Available in three different lengths: 9ft, 10ft and 125ft