This device is used to wire wires and connect to an outlet to supply power to your devices.
The body material is heat and tracking, and is made of a flame retardant (UL94 V-0) specification nylon resin that does not contain harmful substances.The cover part uses soft resin that is flame retardant (UL94V-1) specifications.
The electrical wire connection can be "crimp terminal" by tightening the terminal screws.