Heavy Duty - Each heavy-duty aluminum O-shaped carabiner is rated at 25kN and maximum weight at 500kg, making it more convenient and safer for you to use in climbing, hiking, rappelling and rescue. Designed with safety in mind: the textured lock nut prevents accidental carabiner slippage while reinforcing the door. The inner spring closes the door automatically and is operated with one hand. Convenient and easy to use: the size of each carabiner is 11 x 6 cm. Its compact design makes it convenient and easy to carry. High-quality design with threaded nuts on the latch. It is easy to connect the seat belt and protective gear. Durable - These snap hooks are made of high quality 7075 aluminum, which is very durable and long-lasting. In other words, you can load it with a key or connect it to a heavy bottle Multifunctional Devices: Carabiner is very suitable for everyday use. It can be hung on backpacks or handbags to hang keys, flashlights, ropes, ropes, hoses, water bottles and other