The 9 ft. Rodent Proof Garage Door Bottom Seal Kit is the strongest bottom-seal protection for single car residential and commercial garage doors. Black EPDM rubber with internal rodent-blocking mesh seals out rats, mice, water, snow, dust, leaves, and cold drafts, keeping your garage cleaner, drier, and measurably warmer year-round. EPDM stays flexible in extreme cold for reliable sealing through every season. Important: the rodent blocking is the INTERNAL mesh layer, the outer EPDM rubber is not chew-proof on its own. Complete kit includes one roll of 9 ft. x 4 in. EPDM seal with internal mesh, two 4 ft. 6 in. aluminum retainer sections, mounting screws, and installation guide. Trim retainer with a hacksaw and seal with household scissors to fit single car doors up to 9 ft. wide and 1-3/8 in. thick. Designed for 1/4 in. T-bulb track. Seals floor gaps up to 1-1/2 in. INSTALLATION — two-person install recommended. Apply a 1:4 dish-soap-and-water mix or silicone spray to the T-rib, then feed the seal from one end while the second person pulls. Install the L-leg flush against the inside of the door. Compatible with sectional aluminum, steel, wood, and ribbed roll-up doors.