Features: 1.GOOD INSULATION: Used in different types of car audio and safety devices to prevent wire short circuit by insulating the end of the wire. 2.EXCELLENT CONNECTION PERFORMANCE: Crimp cap nylon connectors make wiring work easier; this closed connector with inner tube ensures a perfect connection between wires. 3.GOOD QUALITY MATERIAL: Adopt nylon and aluminum tin plated, engineering plastic thermoplastic molding, hard, firm, tightly packaged, possess good heat preservation, not easy to age. 4.EASY INSTALLATION: Strip the rubber from the end of the wire, insert the sleeve, and clamp with a crimping pliers. Translucent tube allows visual inspection of inserted wiring. 5.WIDE RANGE OF APPLICATIONS: Suitable for different types of car audio and safety devices, very practical and convenient. Specification Item Type: Closed End Cap Model: HX0100634 Material: Nylon + aluminum Parameter: Model L1(mm) L2(mm) Dia 1(mm) Dia 2(mm) Wire range Quantity(pcs) AWG mm² CE-1X 6.8 17.8 2.5 6.3 22-16 0.5-1.5 100 CE-2X 7.0  20.0  3.0  8.0  16-14 1.5-2.5 100 CE-5X 8.0  25.5 4.0  10.0  12-10 4-6 100 Package List 100 x CE-1X Closed End Cap100 x CE-2X Closed End Cap100 x CE-5X Closed End Cap