304 STAINLESS STEEL - These quick links are made of stainless steel, which has increased hardness and corrosion resistance than other standard alloy metallic materials. Quality hardware resists harsh weather for long intervals of time and is extremely sturdy and safe.EASY TO USE - Twist clockwise the thread to open and anti-clockwise to close. And the extremely smooth threads are very convenient for installation and disassembly even though it is closed for an extended time.MAX. LOAD 500 LB - Unique design and strengthened chrome steel material for progressed load sporting capacity. The most load capability of this connector is 500 lb. Almost all of the desires are met. Tip: Please do not exceed the max load for safety.MULTI-PURPOSE - M4 stainless steel chain connector ideal for out of doors activities such carabiner, swing set, colour sails, mountaineering ladder, hiking, camping, fishing, key chain, backpack, ropes, pets and so on.colour: silverMaterial: stainless steelPackage Contents:12 x m4 Stainless Steel Chain ConnectorOnly the above equipment content, different products should not included.Note: Light shooting and different reveals could cause the color of the article in the picture somewhat various from the real thing. The size allowed error is +/- 1-3cm.