Product Description: Description:180PCS Electrical Wire Connectors Screw Terminals, Easy Twist On Connector Kit with Spring Crimp Nuts Cap Connection Assembly Set - Gray Connectors, Blue , orange, yellow and red with storage box Features: No pre-twist wire, solder or electrical tape required, no tools required. Cone-shaped spring pulls wires into connector and tightens. Adjusts sizes for various gauges of electrical wire, great addition to your electrical connector kit Great for the home cinema, speaker wire, stereo wiring, automotive, marine wiring projects, home wiring projects, commercial or residential applications, etc. Package Included 50pcs Gray #22 - #20 AWG Wire Connectors 50pcs Blue #20 - #18 AWG Wire Connectors 50pcs Orange #18 - # AWG Wire Connectors 16 18pcs Yellow #14 - #16 AWG wire connectors 12pcs Red #14 - #12 AWG wire connectors Maximum voltage rating: gray, blue and orange (300 volts), yellow and red (600 volts) Safely and effectively: Flame retardant shell provides safety and insulation when wiring, pre-twist wire is not required. Securely connect wires without soldering or electrical tape, no tools required. Cone-shaped spring pulls wires into connector and screws into place, spring-loaded insert ensures stable connection when working on wiring projects. Five color codes: includes an assortment of five gray, blue, orange, yellow and red colored connectors, assorted sizes for most electrical wiring projects and applications, a great addition to your electrical connector kit! Applications: Twist-on electrical connectors are perfect for home theater, speaker wire, stereo wiring, automotive, marine wiring projects, household wiring projects, commercial or residential applications, etc. Assortment Gauge: 50pcs Gray Wire Nuts, min 2x #22 max 2x #16, 50pcs Blue Wire But, min 2x #22 max 3x #16; 50pcs orange wire nuts min 1x #18 and 1x #20 max 4x #16 and 1x #20; 18pcs Yellow Wire Nuts min 2x #18 max 4x #14 and 1x #18; 12pcs Red Wire Nuts min 2x #14 max 2x #10 and 2x #12, total comes with 180pcs screw cap. Ease of Sotrage: Our screw-on wire connector assortment is packed in a divided storage box to keep the different wire connectors separately. Suitable for storage and use.