Fastlink  is a connector, splice, and tensioner for use on all types of wire.       
1.FASTLINK eliminates the need for stretchers, ratchets, crimps, crimping tools, wire splices, and tying wire by hand. 
2.It operates like a Chinese finger trap with one-way locking channels. 
3.The wire passes through the FASTLINK in one direction, then rollers and steel springs lock the wire and prevent it from going back the other way. 
4.To prevent rust and corrosion on the exterior, the housing of the FASTLINK is composed of a zinc-aluminum alloy.  Internally, rollers are used to combat rust and corrosion.  
Type1: Available wire range: 1.3-2.5mm
Type2: Available wire range: 2.2-3.5mm
Type3: Available wire range: 3.5-5.5mm.