200PCS Heat Shrink Butt Connectors, 16-14 AWG Blue 3:1 adhesive-lined heat shrink, built-in wire stop, single-size pack for automotive, trailer, and stereo wiring

HIGH QUALITY COPPER CORE: Core heat shrink butt connectors feature a copper core with high thickness, up to 0.8 mm. Make connection projects safer! The thick copper core draws buyers' attention.
HIGH QUALITY HEAT SHRINK: Translucent heat shrink tubing offers high tensile strength and resistance to stretching and mechanical damage. A thick barrel ensures a strong crimp every time. Your wire will never slip out of these heat shrink butt connectors.
APPLICATION AREAS: Suitable for use in areas such as automotive, watercraft, electrical, and electronics industries, with 3 different sizes, making repair work much easier.
COMPLIANT WITH ALL RELEVANT STANDARDS: These heat shrink butt connectors meet ROHS, ISO 9001: 2008, SGS, and CE standards.
RECOGNIZABLE: Tubings of different colors with the mark of wire gauge are easy to identify. Measure the wiring, and by checking the mark of wire gauge on the polyolefin tubing, you can select the right connector very easily