Premium Bosshead - Universal Swivel, Industrial Series Universal Swivel Bosshead up to 16 mm rods. Adjusts to Any Angle (Dual 360 Rotation of Boss-heads), Threaded metal one piece clamping screws, Both bossheads can swivel 360 degrees, Made of high strength powder coated alloy
Premium Lab Clamp - Three Prong with Bosshead, Made of high grade zinc alloy and powder coated alloy with all metal adjustment screws, 3 Vinyl Coated Clamp Fingers, 6 cm maximum clamp opening, Bosshead accepts up to 18 mm rods