328pcs 2:1 Polyolefin Shrink Heat Shrink Tube Wrap Wire Cable Insulated Hose Set Key benefits Protects and insulates: provides reliable electrical insulation and abrasion resistance for wire joints, splices and exposed conductors. Simplifies repairs and organization: color-coded tubing makes it easy to identify circuits and tidy cable runs. Versatile and ready to use: 328 pieces in 8 sizes and 5 colours cover most household, automotive and professional wiring needs. Product features Quantity and variety: 328-piece kit with 8 different size specifications to match a wide range of wire and cable diameters. Material and performance: made from polyolefin with a 2:1 heat-shrink ratio for consistent, predictable shrinkage when heated. Colors and format: includes 5 colours for identification and organization; tubing is supplied flat for easy storage and cutting. Functions: insulation, strain relief, abrasion protection and basic environmental sealing for electrical connections and cable joints. Compatibility and typical uses Works with copper and tinned copper wires, multi-conductor cables, and small hoses where heat-shrink tubing is appropriate. Suitable for electronics, communications equipment, automotive wiring, marine and aircraft cable repairs and general home projects. Practical scenarios Automotive: cover and seal soldered splices on a car wiring harness, add strain relief at connector entry points, and color-code sensor leads for quick troubleshooting. Electronics repair: insulate repaired traces and wire-to-board connections, and use narrow sizes for precise fits on small gauges. Home and hobby projects: bundle and identify speaker wires, repair lamp cords, or protect garden tool cable joints from abrasion. What’s included 328 pieces total across 8 size specifications and 5 colours; tubing supplied flat for convenient cutting and storage. How to use (simple steps) 1. Slide an appropriately sized tube over the wire or splice before making the final connection. 2. After the connection is complete, center the tubing over the joint. 3. Heat evenly with a heat gun, lighter, or appropriate heat source until the tubing contracts to form a snug, protective sleeve. Why choose this set Broad size and colour selection reduces the need for multiple purchases. Polyolefin material with 2:1 shrink ratio delivers consistent fit and reliable insulation for common electrical and mechanical applications. Note: Follow safe heating practices and compatibility checks for specific wire insulation and application requirements.