Specification:Material: PolyolefinWeight: 72g/2.5ozQuantity: 102pcs Features: These are 102pcs solder seal heat shrink butt wire connector terminals, easy and convenient to use for the combination of low melting point alloy and heat shrinkage tube. Hot melt adhesive with waterproof function, good sealing, waterproof and insulation performance. Easy to identify: different colors coded tube makes it is easy for you to choose the suitable one. A great material for connecting cables together. Suitable for wire connection, welding heat shrink protection, waterproofing, cable gathering and maintenance, automobile maintenance, etc.