Complete kit: comes with 480 pcs, 30 types of terminals with male and female round connectors, male and female lugs, rings, double lugs, splices etc in 3 colors (red, blue and yellow depending on the diameter of the wire). You will always find the right connector for all your electrical wiring projects. Premium Quality: These electrical connectors are made from tinned copper inserts with PVC insulation. Safe and of high quality. Supplied in a compartmentalized plastic case for easy access to each model. Excellent Contacts: The copper core provides increased current flow and ensures less voltage swings, preventing wiring failures and reducing equipment downtime. They resist vibrations in harsh environments, perfectly isolate and protect electronic connections. Easy to crimp and durable: This wire terminal set is a heavy duty assortment of crimp connectors. They are easy to use while providing long term performance. The color of the insulation corresponds to each color used on the majority of crimping pliers to avoid any error and ensure optimal fixing. Well crimped, your wire will never slip out of these connectors. Many applications: Its a handy assortment of terminals and connectors for quick electrical repairs. Ideal for electrical panels, garages, electricians, mechanics, workshops for cars, vans, motorcycles, etc. Kit includes: 40pcs M4 ring terminals (20pcs Red + 20pcs Blue) 50pcs M5 ring terminals (20pcs red + 20pcs blue + 10pcs yellow) 50pcs M6 ring terminals (20pcs red + 20pcs blue + 10pcs yellow) 10pcs M8 ring terminals (10pcs Yellow) 50pcs Male round terminals, (20pcs red + 20pcs blue + 10pcs yellow) 50pcs Female round terminals, (20pcs red + 20pcs blue + 10pcs yellow) 50pcs 250 male spade terminals (semi-insulated), (20pcs red + 20pcs blue + 10pcs yellow) 50pcs 250 female spade terminals (semi-insulated), (20pcs red + 20pcs blue + 10pcs yellow) 50pcs 250 female spade terminals (fully insulated), (20pcs red + 20pcs blue + 10pcs yellow) 50pcs splices butt, (20pcs red+20pcs blue+10pcs yellow) 30pcs Double spade terminals, (10pcs red+10pcs blue+10pcs yellow) Usage steps: 1, strip the sheath of wire. 2, Place the connector in the appropriate jaw. 3, Insert the wire into the connector. 4, Crimp the connector to firmly hold the wire.