Specification: 100pcs Mixed Solder Sleeve Heat Shrink Butt Wire Splice Terminal Connector An easy one step connection of wires, soldered, insulated and sealed Fast, efficient, no crimping required Solder and seal and with advanced waterproof function Transparent heat shrink sleeve allows for precise visual inspection Greater pull strength Ideal used in electronics, railway, marine, automobile, motorcycle, aerospace and other outdoor applications Storage in a plastic case for easy access Color: Red, Blue, White, Yellow, Black Package includes: 20x Red Solder Heat Shrink Sleeve 20x Blue Solder Heat Shrink Sleeve 5x White Solder Heat Shrink Sleeve 5x Yellow Solder Heat Shrink Sleeve 50x Black Heat Shrink Sleeve