Branded Boards 3 inch Aluminum Locking Carabiner | D-Ring Shape Heavy Duty Buckle | Small Clip, Key Ring, Backpack Clip, Spring Link Hooks | Black or Grey. Strong, Lightweight, Rust Resistant with Smooth Edges and Easy to Use. Easy-to-use thumb screw lock mechanism keeps your belongings secure and safe. Great for Bushcraft, Backpacks, Tents, Keychains, Camping, Hiking, Travel, Fishing, Tools & Water Bottles. Have fun and be safe using these STRONG & DURABLE Heavy Duty Aluminum Locking Carabiner spring snap hooks. Ezaizai LLC and Branded Boards not responsible or liable for damages or injuries incurred while using this product. Carabiners are not load rated certified and are not rated/certified for climbing or Safety Purposes.