ProTek RC 5mm EZ Solder Splice Tube Sleeves (5) (16-14awg Wire), PTK-5651 ProTek R/C 5mm EZ Solder Sleeves are heat-shrinkable solder-type butt connectors designed to make splicing 16-14awg wires simple and effective. Compatible with both surface and air applications, as well as a variety of other uses, these solder sleeves provide a reliable alternative to soldering, crimping, and conventional twist-on-style closed-end connectors. The tubes feature a prefluxed solder ring that helps you achieve an effective low resistance connection, while the adhesive rings help to create a secure, waterproof seal on the wire. Plus, the transparent heat shrink allows you to inspect the connection, remains flexible for strain relief and insulates the junction. Package includes five sleeves. Features:Easy to use: With a very simple design these solder sleeves are easy to use, and allow a single step soldered, sealed and insulated connection. Install with a heat gun, torch or lighter. Clear sleeve allows precise wire positioning for an effective connection.Effective: These solder sleeves perform well in almost every situation where soldering is needed. Extending battery wires, motor wires, and more.Durable: Materials offer a high quality solder connection with no measurable resistance, and the heat shrink material remains flexible and allows inspection of the junction.Waterproof: Each sleeve includes waterproofing adhesive. Once melted the wire becomes waterproof. Specifications:Diameter: 6mmCompatible Wire: 16-14awgShrink Ratio: 2:1 Operating Temperature: -55°C to 125°CMinimum temp to shrink plastic tubing: 80° C / 176° FMinimum temp to melt solder sleeve: 138° C / 280° F Instructions:- Strip approximately 1/3" (8.5mm) of the shielding from your wires.- Slip the appropriate size solder sleeve connector over one half of the exposed wire.- Slide the two wire ends together so that the exposed wire strands intertwine with each other.- Slip the solder sleeve connector over the connection so that the solder ring is centered on the exposed wire.- Apply heat to solder sleeve until the solder melts.- Apply heat to the adhesive glue rings.- Wait a minute for it to cool before applying tension or pressure to the wire.- Finished