🔌 Shrink it, seal it, and forget it! Your DIY dreams await! UL certified for up to 600V and 257°F, ensuring reliability. Glue-lined for impermeable protection against saltwater and liquids. Comes with a handy storage box for effortless access. Perfect for solder joint protection and cable organization. 3:1 shrink ratio for a tidy, professional finish in minutes. UL certified 600V 3:1 shrink ratio 270 pcs The MILAPEAK 270 PCS Heat Shrink Tubing Kit offers a comprehensive solution for all your electrical insulation needs. With a 3:1 shrink ratio and UL certification for safety, this marine-grade tubing is perfect for both automotive and industrial applications. The kit includes 270 pieces in various sizes, ensuring you have the right fit for any project, all neatly organized in a convenient storage box.