Gas Strut Aids Speaker Lift. Adjustable Height. Folding Legs and Locking PinMaximum Height: 1900mm Minimum Height: 1140mm Folded Length: mm Foot Print Max: mm Tube Diameter:35mm Material: Steel Maximum Load: 45kg Weight: 5.85kg. A unique hydraulic speaker stand- makes lowering and raising speakers a synch- let this stand do it for you. A strong stand with 3 tripod legs and safety pin for height setting. Speakers need to weigh less than 60kg.. speaker stand-hydraulic speaker stand-tripod speaker stand