Woodbrass SP35 connection tube The Woodbrass SP35 connection tube is worth considering if you are looking for a secure and effective connection between satellites and subwoofers with 35 mm bases. Key features Robust: made from aluminium tubing, treated steel screws and reinforced nylon connectors. Lightweight: easy to handle during installation and transport. Simple: height adjustable to 4 positions using sliding tubes. Secure: the height pin can be locked with a screw knob. Features Connection tube between subwoofer and speaker Material: aluminium Diameter of both ends: 35 mm Height adjustable to 4 positions: 80, 95, 111 and 116 cm Tightening knob with safety pin Weight: 520 g Maximum load 30 kg