Package comes: TWO pieces of 4 inch stainless steel screw locking carabiners, carabiner Snap Hooks Max Load 650lbs. Size: The total length of the heavy duty spiral hook is 4 inches, The width is 2 inches and the opening is 0.58 inches. Material: locking carabiners is made of high quality 304 stainless steel, making the heavy duty threaded hook carabiners rustproof and corrosion resistant. The screw lock makes user's process safer. Wide applications: carabiner snap hooks great for attaching anchors, swings, shade sails, camping, hiking, indoor and outdoor equipment gear and DIY accessories.