Great Value PackageThe electrical connectors kit includes 678pcs, 350pcs 17 types of wire terminals in three colors and 328PCS 2: 1 heat shrink tubing. You'll find the right connector and tubing for almost any electrical wiring project. Gift Gift: "Makerfire" Bracelet Various Styles Crimp connector set includes fork, female terminal, piggyback, male terminal, ring, OT-10A copper, copper square terminal, butt splice connectors, etc. Heat Shrink Tubes The sleeving tubes are excellent flame retardant and insulating performance. Soft and flexible, acid and alkali resistance, anti-aging. The shrinkage ratio of the heat shrinkable tube is 2:1, the shrinkage temperature is 70C, rapid shrinkage, just a few seconds to complete the shrinkage Electrical Connectors Wire terminals made from of high quality copper inserts and PVC insulation, not easy to corrode, rust and good ductility, high thermal conductivity and electrical conductivity. They are easy to crimp while providing long-term performance. your wire will never slip out of these connectors Application Electrical crimps are widely used in home theater, speaker wire, stereo wiring, automotive, marine wiring projects , home wiring projects, commercial or residential applications. Ideal for garages, auto electricians, mechanics, workshops or cars, vans, motorcycles etc Welcometomeet