Premium Material Our heat shrinking tube is made of high-quality thick EVA material, which is not easy break or deform, long-lasting, durable and fast shrinking, sturdy, and durable, can provide strong protection for your wires and cables. .Easy to UseThese cable shrink sleeving with 1/2 shrinkage ratio, wraps on wires with all shapes closely and firmly. Cover the bare wire part with these tubes, heat it with soldering iron, or even hair dryer, the tube will shrink protect the wires and easy for daily use. .Easy to CarryThese heat shrink sleeving fits for all types of wires and cables, all heat shrink connectors are packed in a plastic box for easy storage, carry, or use. No leakage, water resistance to ensure its safe to use. .Wide ApplicationsThese heat shrink tubes are suitable for electrical insulation, wire bundling, colour coding, mechanical protection, wire/cable joints and daily repairs, etc, satisfied for geeneral DIY home and auto electrics. .What You Will GetYou will get 580 pcs heat shrinking tubes in 12 sizes of 6 colors, diameter: 1mm/1.5mm/2mm/2.5mm/3mm/3.5mm/4mm/5mm/6mm/8mm/10mm, shrinking ratio: 2:1, satisfied for your different need. .