from aluminum alloy (97g), the 50mm opening clamp securely holds 12-50mm diameter objects like railings and tabletops while supporting up to 3kg payloads for professional photography setups This camera super clamp features two 1/4" 20 and 3/8" 16 threaded holes, offering universals compatibility with cameras, lighting equipment, tripods, and various photography accessories for multi device mounting solution Perfect for stabilizing equipment on tree branches during outdoor filming, attaching fill lights to glass tabletops in studios, or mounting action cams to railings for adventure photography for content creators, vloggers, and studio photographers needing portable mounting solution for cameras, rings lights, umbrellas, or accessories during on location shoots The crabs shaped design with reinforced locking mechanism ensures 360 adjustable positioning, making it essential for dynamic shoots angled in both indoor studio setups and outdoor environment