Speaker Pole Mount Adjustable 38"-54"

The ProX T-SAA-M is exactly what you need for your subwoofer-speaker PA system. It's adjustable in height from 38" to 54" and mounts between a subwoofer cabinet with a top mounting hole and a speaker with a bottom mounting hole sized at 1 3/8" (35mm). The T-SAA-M features both a friction locking knob and a security pin system and is made from durable steel. Holds up to 120lbs   Heavy-duty steel construction Height adjustable from 38" to 54" Friction locking knob with security pin Upper Tube Size: 1 3/8” (35mm) Lower Tube Size: 1 3/8” (35mm) Weight Rating: 120 lbs. (54.4 kg) Weight: 3 lbs. (1.4 kg)