Premium Clamp - Four Prong with Bosshead, Clamp constructed of powder coated high grade zinc alloy, Clamp prongs (4) are vinyl coated, Maximum clamp opening is 10.5 cm, Swivel between Clamp and Bosshead, Boss accommodates to 18 mm rod, High Strength Alloy Bosshead
Premium Clamp - Three Finger with Bosshead, Clamp constructed of powder coated steel, 3 finger rubber coated clamp attached to swivel boss head. Maximum clamp opening is 8.5cm, Boss accommodates to 18mm rod