describe Durable Structure: These multifunctional mountain buckles have excellent strength and corrosion resistance. They can withstand the harsh tests of daily use and outdoor exploration. 【 Multiple Applications 】: These hooks are perfect for daily use and can be hung on backpacks, swings, handbags, or pets. They are also an ideal choice for hanging lights, fitness equipment, and more. They are indispensable for outdoor activities such as camping, fishing, hiking, and traveling. 【 High Strength and Durability 】: These mountain hooks have high hardness and wear resistance, making them durable and long-lasting. Even under heavy and challenging conditions, they can maintain their shape, making them a reliable choice for various applications. Corrosion resistance: The long lock surface protects the iron from rust and corrosion, ensuring that the climbing hook can maintain its function and appearance in all weather conditions. Easy to Connect: These hooks feature a screw lock design that allows for multiple connections, making it easy to connect them together or to other devices for customized settings. Specifications Material: Iron Process: Galvanizing Dimensions: M4 (4cm), M5 (5cm), M6 (5.7cm), Applicable: For daily use, such as hanging on backpacks, swings, handbags, and pets, used to hang chandeliers and fitness equipment. Outdoor activities such as camping, fishing, hiking, traveling, etc Features: High hardness, durability, wear resistance, corrosion resistance, not easily deformed, threaded nut design for multiple connections Package includes: 2-10 * connecting hooks