Features • Versatile Daily Maintenance Tool: Ideal for electrical insulation, wire bundling, color coding, and mechanical protection, ensuring comprehensive care for your cables and wires • Custom Fit Design: Quickly melts with heat to conform closely around items, preventing damage and providing a secure, tailored fit for all your wiring needs • Efficient 2:1 Shrinkage Ratio: Offers a practical 2:1 shrinkage ratio, allowing the tubing to wrap tightly around objects for enhanced protection and reliability • Environmentally Friendly Material: Made from high-quality materials that are friction proof, aging resistant, waterproof, and environmentally safe, ensuring long-lasting performance • Broad Application Range: Perfect for insulating wiring harnesses, solder joints, inductors, and various electronic projects, making it a must-have in your toolkit Features: 1、Quick Shrink: Use in conjunction with hot air gun, the tubing enables quick shrinking to flexibly wrap the cable. 2、Good ing: Ensuring good ing, the tube made of safe material is has good durability with acid and alkali. 3、Various Size: Including 385pcs black heat shrink tubing in different sizes, meeting your various working needs. 4、Safe Working: Flame retardant and insulating, the wire shrink wrap set is very safe in electrical application. 5、Easy to Carry: The storage box will keep all the tubes in an orderly way, which largely simplifies the carrying. Specification: Item Type: Heat Shrink Tubing Kit Model: 385 Pieces Set Product Parameter and Specification: Model(Approx.)21 Package List: 385 x Heat Shrink Tubing 1 x Storage Box Package List 385 x Heat Shrink Tubing 1 x Storage Box