Gravity SP 3332 TPB - Adjustable Two part Speaker Pole, 35 mm To 35 mm The SP 3332 TPB is a 35 mm pole to mount satellite speakers on subwoofers. The heavy duty construction of powder coated steel is height adjustable from 105 to 140 cm. The SP 3332 TP B features a 35 mm bottom end and steel collar with set screw and safety pin to securely lock the extension pole in place. The base tube is a two-piece assembly that can be unscrewed to result in an amazingly short transport length of 54 cm only. The SP 3332 TP B comes with a convenient rubber retainer to secure the safety pin during transport.