K&M 21366 ""Ring Lock"" 950/1370mm, Steel Rod Combination, To connect satellite systems, The height is adjusted by an easy-to-use spring-loaded bolt and locking screw., Both ends with unique patented expanding mandrel system for a tight and firm fit to the subwoofer and satellite speaker., Movable plastic splints provide for a vibration-free connection between the rod and the speaker., Easy to use ring lock, Weight: 2.4 kg, Height adjustable 950-1370 mm, Maximum load: 35 kg