[Multi-size]: There are three different sizes, including blue and green male and female terminals: wire sizes: 0.15-1.5mm, A.W.G: 22-16, max current=10A; Red and Black Butt Connectors: Wire Sizes: 1.5-2.5mm, A.W.G: 16-14, max current=15A; Yellow Butt Connectors: Thread sizes: 4-6 mm, A.W.G: 12-10, Max Current=24A. [Package Include]: There are 100 male and female automotive electrical terminals in different sizes in 5 colors, 50 female connectors and 50 male crimp connectors in a transparent box with compartments. Each color has 5 female connectors and 5 male connectors, which is enough for your different needs. [Material]: The wire connectors are made of copper and insulated PVC, which has resistance high in tension and stretch. Electrical connector protects splices from water and corrosion, which is durable for long-term use. [Easy to Use]: Round electrical terminal insulates and protects electrical connections, more reliable than conventional crimp terminals. Insulated male and female connectors are easy to connect with electric wire to enhance its reliability and safety. Without soldering, it is easy to use, even a beginner can use it easily. [Wide Application]: Electrical bullet connectors are suitable for most occasions, such as household appliances, speakers, etc. audio speakers, automobiles and other electrical wire connection projects. Insulated bullet terminal is easy to connect with electric wire to enhance its reliability and safety. 5 colors: blue, red, yellow, green and black, which can distinguish different specifications of crimp terminals. Blue and green butt connectors: Wire sizes: 0.5-1.5mm A.W.G: 22-16 Max current=10A Red and black butt connectors: Thread sizes: 1.5-2.5mm A.W.G: 16-14 Max current = 15A Yellow butt connectors: Sizes of thread : 4-6 mm A.W.G: 12-10 Max current=24A Green female and male butt connectors - 20pcs Female butt connectors and red male - 20pcs Black female and male butt connectors - 20pcs Blue female and male butt connectors - 20pcs Butt connectors yellow females and males - 20pcs