2-Way Quick Push Type Lock Electric Wire Connectors for Cable Terminals, Screwless Quick Electrical Connector (10pieces) Material: Polypropylene plastic and copper Temperature: -40 to 150 degrees Celsius 2 way connectors Energy Efficient: Consumes minimal electricity while maintaining Compact & Portable: Lightweight body makes it easy to move Size: approx. 20 * 17.5 * 13.5mm Wiring: wiring capacity from 0.5-2.5 square wire