Features: 
100% brand new and high quality kuzavtye heat shrink solder sleeves. Electrical cable connections without crimp connectors.
This article consists of a transparent heat-shrinkable sleeve and a solder flux.
A simple one-step connection of soldered, sealed, insulated wires with a watertight hot-melt adhesive function.
Can be ideally used for marine, electrical and automotive applications.
Shrinkage ratio: 2: 1.
Easy handling! The transparent sleeve offers precise inspection.
No crimping and messy solder joints required.
Operating temperature range:
Operating temperature: -55

Technical indicators:
MAX operating temperature: 55

Used on:
marine
automobile
Electric
No crimping and no messy solder joints.

50pcs Blue:
Blue-length 35 mm-inner diameter 4.5 mm 16-14 gauge

400 pieces mixed pack :
(including 70 white + 150 red + 150 blue + 30 yellow)

Note:
Due to light and screen difference, the item's color may be slightly different from the pictures.