It is made up of 316 marine grade stainless steel, which is excellent for outdoor activities and can withstand seawater erosion all year round. Long-lasting and ideal for year-round usage in marine environments. The carabiner doesn't rust under any circumstances. It is dependable, economical, stable, and long-lasting enough to use for a long time. Our carabiners offer a smooth surface and an easy-to-use locking mechanism. The structure and design can help to avoid scratches and abashing. Our snap hooks are ideal for both indoor and outdoor use. It may be used for a variety of things, almost everything, including ropes attached, boating, sailing, camping, backpacks, key rings, keychains, split rings, belt loops, pants loops, briefcase straps, purse straps, fishing, travel, sports, and activities.