[Safe to use] Comply with all electrical standards. Also, the Insulating Sleeve made of PVC Insulation material, Flame retardant design ensures safety. [Red, Blue and Yellow Color Identification] You can identify the cable range of this crimp connectors by the color. AWG 22-16 , AWG 16-14 (blue), AWG 12-10 (yellow). [Quick Connection] Just prepare a crimper, then you can crimp the connectors and connect the wire in a few seconds without soldering. time and improve work efficiency. [Thick tinned copper material ensures long-lasting performance] Premium tinned copper material good conductivity. The is tinned to form an oxide film, which is anti-oxidative and anti-, ensures long-lasting performance [What you get from this package] You get a box of 280PCS cable connectors. 15 types crimp connectors in the most commonly used sizes. 2.8mm, 4.8mm, 6.3mm. Including male and female spade connectors, fork connectors, ring connectors., Weight: 0.41667367518 pounds, Manufacturer: Awwertse