Great material: Crimping sleeves made of high grade copper material which is durable, sturdy,wear-resistant .The surface of the double barrel crimp sleeves is smooth, with no burrs inside or outside to harm the fishing leader.
6 Size: Fishing copper tube connector 6 (1.0mm/1.2mm/1.4mm/1.6mm/1.8mm/2.0mm) ,different sizes of double barrel crimp sleeves for different situations, can meet your different fishing needs
Easy to use: Double barrel crimp sleeves easy to crimp, compresses consistently without cracking.Crimping loop sleeves are easy to use, without effort, just lock both ends of the guide wire by vise, pliers or compression tools,can meet your different needs in daily life.
Suitable for: Double barrel crimp sleeves kit nice for mono, wire er, making trolling and bottom fishing rigs.Perfect for saltwater fishing. Double copper crimp sleeve kit is easy to use.These are excellent for use with big leader material and can also be fitted to wire leader and other various lines.
Standard specification: Conform to strict quality control standards, dependable to use.Manufactured according to the original specifications.Built to meet standard specification, strictly follow factory quality control
Product From USA 
