The original and patented tailgate seal 6ft length Standard and 14" length Large. To purchase additional Large Tailgate Seal with Taper Seal search ASIN: B098MSCH8L. Use for either the sidewalls "OR" the tailgate gap when using a tonneau cover or truck cap. IMPORTANT: To completely seal both the sidewalls and horizontal tailgate gap purchase a 10ft length (search ASIN: B00IPQWXZQ). Use on the sidewalls when using a ROK BLOCK (ASIN: B00BPE4AP6) or when using a BedRug truck bed liner that covers only the horizontal tailgate gap. Not compatible with the following pickups: 2020 and newer Chevy Silverado and GMC Sierra 2500 and 3500 (buy ASIN: B09BG3T6NB), GMC Sierra with MultiPro Tailgate (buy ASIN: B085896S8R), Chevrolet Silverado with Multi-Flex Tailgate (buy ASIN: B085896S8R), Ford Lightning (buy ASIN: B0B5Y9MFCK), Ford Maverick (buy ASIN: B0BWV7HJMZ), Ford Raptor (buy ASIN: B0B5Y9MFCK), RAM with RamBox (buy ASIN: B08L21DGNB), RAM with RamBox and Multifunction Tailgate (buy ASIN: B0BB4FXC6V) and Nissan Titan (buy ASIN: B08YRZB3H3). Packaged or online Instructions must be followed to properly install this product. Apply when the air and surface temperature is between 55° - 104°F. This product requires 25 lbs. of pressure to bond adhesive. MADE IN USA by Extruded Solutions Inc (ESI).