What you get: 1pcs wire crimping plier tool, 370pcs wire terminals connectors ,comes with a box of 370pcs 18 types of wire terminals connectors. RED for (0.5-1.5mm²), BLUE for (1.5-2.5mm²), YELLOW for (4-6mm²). wire crimping tool is made of hardened alloy steel with high strength; Professional crimping tool: Ratcheting Wire Terminal Crimper features a ratcheting mechanism design with adjustable crimping compression. It has a steel jaw with color coded wire. Good performance:This wire crimping is made of premium industrial grade high strength chrome vanadium steel which is treated with black oxidation,rust and corrosion resistance. Precise ratcheting mechanism：Wire connectors are crimped by squeezing the handle through a complete ratcheting cycle until the handle releases automatically.The wire connectors can be secured by the ratcheting for you to insert the wires into the crimp. Good performance:This wire crimping is made of premium industrial grade high strength chrome vanadium steel which is treated with black oxidation,rust and corrosion resistance. 【Matching 370Pcs Connectors】: Contains 27 types of wire end connectors 370Pcs. Red is (0.5-1.5mm²), blue is (1.5-2.5mm²), and yellow is (4-6mm²). are sufficient to meet all your needs., Weight: 1.9621141318 pounds, Manufacturer: Dechengbao