Professional pneumatic high stand (maximum height 310 cm) for speakers and lights with 35 mm diameter connection. Made of steel and aluminum. Height adjustment via automatic button and safety knob. Central block, leg connection and pneumatic valve in loaded nylon. Non-slip foot with a special shape that greatly reduces the transmission of vibrations. Upper tube in aluminum with anti-rotation guide and equidistant holes. Sturdy steel legs with special milling that allows the total retraction of the connection bars to ensure safety and reduced bulk.