4.5 mm - 1 m Black Rebel Heat Shrink Tubing Looking for heat shrink tubing that combines reliability with versatility? 4.5 mm - 1 m Black Rebel Heat Shrink Tubing is the perfect choice for you! With its flexibility and flame resistance up to 125°C, it's ideal for a variety of electronic and electrical applications where safety and halogen-free performance are key. A 90°C shrink temperature and 50% radial shrink ensure a precise fit that guarantees strong and durable connections. High tensile strength and excellent concentricity improve reliability and performance.