The Kramp KK4L040012 is a genuine Kramp heat shrink tubing designed for reliable electrical insulation and protection. This black tubing features an internal adhesive lining, providing a secure, moisture-resistant seal upon shrinking. With a 3:1 shrink ratio, it reduces from an initial diameter of 40 mm to a final diameter of 12 mm, making it suitable for various cable and wire applications. Each piece is 1.2 meters in length, offering flexibility for different project requirements. It is ideal for sealing, insulating, and protecting connections against environmental factors.