Secure Seal Technology: When heated, these tubes shrink to half their original diameter, ensuring a secure, water- seal that protects connections from environmental factors such as water, dust, and chemicals. This feature is crucial for maintaining the integrity and performance of your electrical installations. Versatile Sizing and Colors: The assortment includes tubes in eight different sizes ranging from 1mm to 14mm in diameter, catering to a wide range of wire thicknesses and project requirements. Available in four colors, these tubes allow for easy identification and organization of wires and cables, simplifying maintenance and repairs. Designed for Electrical Enhancements: This kit features 328 pieces of heat shrink tubing, ideal for insulating wires, sealing connections, and enhancing the durability of electrical and electronic systems. Each tube is crafted to provide a tight, protective seal around wires, enhancing safety and efficiency in electrical setups. Practical Lengths for Multiple Uses: The tubes are provided in two practical lengths, 40mm and 80mm, making them suitable for both short and long wire coverings. This versatility ensures that you have the right length at hand for a variety of electrical tasks, from simple wire grouping to complex circuit protection., Weight: 0.14550509292 pounds, Manufacturer: Aboiled