This Seachoice 48-Inch 3-to-1 Heat Shrink Tubing With Sealant provides a complete environmental seal to prevent corrosion, enhance insulation, and also improve abrasion resistance. This Marine-Grade, flexible polyolefin heat-shrinkable tubing is flame retardant and is rated for - 55°C to 110°C operating temperatures, meaning it's exceptionally versatile and can be used in a wide variety of environments. This black tubing has a 3:1 shrink ratio and an adhesive liner. It measures 1 inch x 48 inches. Seachoice is committed to delivering quality marine accessories and OEM replacement parts to satisfy fishing, boating and watersports enthusiasts worldwide. Seachoice is run for and by boaters, offering a wide-ranging product line while remaining affordable.