High temperature forging cold treatment reinforced link design is strong Suitable for aquarium stitching Photo frame angle clip wood clip Zinc alloy diecasting tongs sturdy and durable painted on the surface rustproof and wearresistant Made of fine iron high hardness not easy to slip convenient and laborsaving can withstand higher hardnessMade of fine iron high hardness not easy to slip convenient and laborsaving can withstand higher hardness Even if the rivet slip is detached the hammer can be reinstalled