Features: Enhanced Connectivity: This 328pcs Heat Shrink Butt Connector kit includes Sealing Heat Shrink Butt Connectors that provide a secure and durable connection for electrical wires. Simply use a heat source to seal and insulate the connection, ensuring reliable performance. Superior Protection: The Anti-Corrosion Heat Shrink Butt Connectors feature a protective sleeve that guards against corrosion and moisture, enhancing the longevity of your electrical connections. This ensures reliable operation even in challenging environments. Versatile Application: Ideal for various applications, this Electrical Insulation Sleeve Data Line Protection kit offers a comprehensive assortment of Electrical Wire Cable Wraps. Whether for automotive, marine, or household use, these sleeves provide reliable insulation and protection. Convenient Organization: The Insulation Heat Shrink Tube Kit comes neatly packaged in a box for easy storage and access. This organized kit simplifies the process of connecting both sides of wires, making it suitable for professionals and DIY enthusiasts alike. Enhanced Performance: By improving pullout strength and insulation, this kit offers better performance and reliability for your electrical connections. Widely used across different applications, it ensures secure and long-lasting wire connections. Specifications Material: Polyolefin Minimum Shrinkage Temperature: ±70 degC Maximum Shrinkage Temperature: max. ±110 degC Operating Temperature: -55 degC to +125 degC Tensile Strength: 10.4 MPa Insulation Strength: 15 kV/mm Flame Retardant: Flame Retardant Quantity: 328Pcs Note: Due to the screen lighting effect, the actual color of the product may be slightly different. Due to manual measurement, please allow size error. Include: 1x 328Pcs(8 sizes) 2:1 Heat Shrink Tubing(Box NOT included)