Premium Clamp - Two Prong with Bosshead, Clamp constructed of powder coated high grade zinc alloy. Clamp prongs (2) are cork lined, Maximum clamp opening is 11 cm, Swivel between Clamp and Bosshead, Boss accommodates to 18 mm rod, High Strength Alloy Bosshead
Premium Clamp - Four Prong, Clamp constructed of powder coated steel, 4 Cork lined clamp prongs attached to aluminum rod. Maximum clamp opening is 10.5 cm, 14 cm Stainless Steel Connecting Rod
Premium Bosshead - Heavy Duty, Industrial Series Heavy Duty Powder Coated Bosshead for rods up to 16 mm, Thicker than normal 7 mm threaded clamping screws, Thicker casting to support more load, Accepts up to 16 mm rods, Made of high strength powder coated alloy