420pcs Package list:
WHITE--80pcs--AWG 26-24--0.25-0.34mm²
RED--200pcs--AWG 22-18--0.5-1.0mm²
BLUE--120pcs--AWG 16-24--1.5-2.5mm²
Yellow--20pcs--AWG 12-20--4.0-6.0mm²

Easy one-step connection of wires, soldering, insulating and sealing.
Can be used in marine and automotive applications.
Internal and external hot melt adhesive for polyolefin tubing.
Solder and seal with advanced waterproofing features.
Polyolefin heat shrink butt joints add pull-out strength, provide sealing, strain relief, cable inspection and insulation.
Solder seal wire connectors hot melt adhesive systems provide the right amount of adhesive,which cools,hardens,
and reaches its bond strength within seconds,ensuring a weatherproof and long-lasting bond for your application.
With enough solder wrapping the wire to melt and flow,marine grade wire connectors forming a seal,
which ensures long-lasting connections,especially for larger one.
The heat shrink creates cable entry seals,which protects the wires and cables from abrasion,cutting,scuffing and low impact.
One and Only:Uniquely marked with wire gauges on the polyolefin tubing,
butt connectors are designed for easy identification and quick selection of the appropriate connector.
Time Saver: Solderless,crimpless, all you need is just a heat gun to finish the joint, much faster and easier than the old way.
Fit for Confined and Narrow Spaces: Can be bent after connection and no need to crimp or solder in the confined area,
just control the temperature via a heat gun.
Waterproof and Seal Performance: There is two hot melt waterproof adhesive rings in each butt connector, which help it hold up better to moisture.
High Temperature Proof in A Short Time: Use exclusive material in the butt connectors to avoid shrink tubing melting before solder ring.