Rutland Extension Rods with Torque Lock Connector are Commercial grade and built for super duty. Just push these rods together and the TLC connectors snap into place, securing them for proper cleaning. They will then unlock with an easy squeeze. This patented design transmits both power and strength without sacrificing ease of use. With a tongue and groove feature that eliminates the torque on the pushbutton, connecting is easy and secure even in the dark!