Good material: These uninsulated butt cut connectors are made of durable, rust and corrosion resistant tin-plated copper for long-lasting use with good electrical conductivity. Simple design: The non-insulated crimp connector is rolling and has no insulation, and there is a wire stop in the center for a clean appearance. They are housed in a storage box to prevent loss and easy storage. Good performance: Our wire butt connectors are well crimped and can be easily fixed after crimping. Wires can be connected without damaging the terminals. Application: Widely used to connect or build custom wire harnesses in machinery, power supply, railway, shipbuilding, aviation, home appliances, computer or other automatic equipment. Package includes: total 200pcs electrical connector, 80pcs 22-18AWG, 60pcs 16-14AWG and 60pcs 12-10AWG, packed in transparent plastic box. Descriptions: Non-Insulated Butt Connectors, Pack of 200 22-18AWG 16-14AWG 12-10AWG - Cable Crimp Terminal Kit, Solderless Crimp Ferrule, with Storage Case for Electrical Connection to Assemble Feature: Product name: non-insulated crimp connectors Type: Electrical Wiring Cable Connector AWG: 22-18AWG, 16-14AWG, 12-10AWG Material: Non-insulated copper electrolytic tube Color: Silver Package includes: 60pcs x 10-12 AWG Uninsulated Butt Crimp Connectors (4.0-6.0mm) 60pcs x 14- 16 AWG Non-Insulated Butt Crimp Connectors (1.5-2.5mm) 80pcs x 18-22 AWG Non-Insulated Butt Crimp Connector (0.5-1.5mm