Kupo lightweight telescopic hangers are made of solid steel witha matte black powder coated finish, designed for mounting withlightweight fluorescents, led lights or any lighting fixtures less than 33lbs (15kg) in weight. Features a safety wire equipped on the column to avoid the iron casting clamp unexpectedly dropping off and the quick release ball safety pin is also equipped to prevent the riser from slipping. The iron casting clamp used for pipe from 1-1/2” (35mm) to 2-1/2” (65mm) o.d. And the collar on the top of telescopic hanger keeps it safe for pan adjustment while the knob of the clamp is loosened. The stirrup head on the end of the telescopic hanger for those lighting fixtures comes withclamps that can be mounted on the hanger directly. Any lighting fixtures equipped with5/8” (16mm) baby receiver can be mounted on the baby pin on the end of the telescopic hanger.