Product Overview & Specifications This set of black spring snap hooks is constructed from high-strength materials for exceptional durability. It is available in four specifications: M4 (1.56 inches), M5 (1.97 inches), M6 (2.36 inches), and M8 (3.15 inches), with each set containing 5 pieces. Each hook is precisely engineered with accurate dimensions (e.g., the M4 model measures 1.56" in length, 0.78" in width, and 0.15" in thickness). They are lightweight (the M4 unit weighs only 0.26 oz) yet offer outstanding load-bearing capacity, with working loads ranging from 70 to 250 lbs and static load capacities from 140 to 500 lbs, meeting needs from daily use to demanding outdoor applications. Advanced Protective Coating The surface features a high-quality epoxy resin coating applied through a cathodic electrophoretic coating process. This creates a seamless 360-degree protective layer with superior adhesion and excellent resistance to chemical corrosion, effectively shielding against salt spray, acids, and alkalis. It also provides anti-rust, scratch-resistant properties, and a smooth, fine texture, combining an attractive appearance with long-lasting durability. Versatile Applications Designed for versatile applications, these snap hooks easily adapt to daily essentials like keychains, water bottles, backpacks, and potted plants. They are also suitable for outdoor gear such as dog leashes (Note: not recommended for large dog collars), hammocks, swings, chains, boxing sandbags, camping lights, and flagpoles. Ideal for leisure activities including camping, mountaineering, fishing, and hiking, they also support practical scenarios like DIY decorations, garage tools, feeders, and fitness equipment. Important Safety Note Important Note: Despite their high load capacity, these hooks are NOT designed for climbing or other extreme sports. Please strictly adhere to the specifications to ensure safety. 【SPECIFICATION】:1.56"(M4) Black Spring Snap Hooks(5 Pcs) are included Length:1.56"; Width: 0.78"; Thickness: 0.15"; Max open width: 0.21"; Unit Weight: 0.26ounces; working load: 70 lb (32 kg);Static weight capacity: 140 lb (64 kg).Note: not suitable for climbing 【A COATING RESISTANT TO WEAR AND CORROSION】:This coating employs a high-quality epoxy resin and is applied via a cathodic electrophoretic process, creating a seamless 360° protective layer. It offers excellent adhesion and outstanding resistance to chemical corrosion, effectively shielding against salt spray, acids, and alkalis. The result is a smooth, fine surface that is anti-corrosive, rust-resistant, and highly scratch-resistant, combining aesthetic appeal with robust durability 【VERSATILE AND MULTI-FUNCTIONAL APPLICATIONS】:This versatile product is ideal for diverse settings. It integrates with daily essentials like keychains and backpacks, serves as a perfect outdoor companion for activities like camping and hiking (compatible with gear from leashes to hammocks), and extends to practical uses in DIY, garage organization, and fitness, effectively bridging domestic and outdoor needs 【EASY TO USE】:This black safety buckle features a convenient push-to-lock design for effortless operation. Having undergone rigorous testing with 30,000 cycles of opening and closing, it maintains consistent performance, making it a dependable choice you can trust 【Excellent service】：Carabiner Clip with 3 year warranty. If you have any questions about products, please feel free to contact us, we will reply you within 24 hours and solve the problem