Features Fast Melting Technology: Quickly conforms to various shapes when heated, ensuring a snug fit that prevents damage and enhances protection for your cables Superior Aging Resistance: Built to withstand wear and tear, this tubing offers exceptional prevention and waterproofing for long-lasting performance Versatile Applications: Ideal for electrical insulation, wire bundling, and mechanical protection, making it a must-have for both professional and DIY projects 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