Feature●High Quality Connection: Durable insulated plastic and hard metal pins, tinned, pure copper inside to ensure good conductivity, surface coated with oxidation for increased life.●Package Content: Includes 620 pieces with most common dupont pin shell connectors and male/female jst sm 2.54mm pitch 1 / 2 / 3 / 4 / 5 / 6 crimp pins suitable for arduino prototype shield.●Widely Application: Suitable for wiring equipment in the fields of electronics, internet, automotive, electrical, medical, speakers, monitors, household appliances, LED lighting, copiers, computers, circuit boards.●Easy to Use: Simply place the crimper into the crimping tool and press so that the crimp insulation is always facing the wire. Effortless, easy to handle and comfortable to use.●Portable Storage Box: The different types of terminal & pin housings are sorted into storage boxes with dividing units for storage, making it easy for you to quickly pick out what you need.Description