The highlighted UL plug is suitable for USA use and offers steady power supply. 

It has a durable casing and is equipped with one round earthing pin and two flat pins. 

This UL plug is safe to use and has a long working life.

• UL power cord, UL plug, Electric plug, Electric power cord
• Model no.: XR-305
• Standard:UL817/ CSA C22.2
• Rated Current:50A
• Rated Voltage: 250V
• Approval: UL/ CUL
• NEMA 5-50P, 5-50P.
• 3-pin UL plug.
• One round earthing pin and two flat pins.
• Durable casing.
• Offer steady power supply. 
• Safe to use.
• Long working life.