The iconic S-Biner design allows quick and easy attachment using its unique double-gated design. The high-quality, durable stainless-steel body is available in a variety of sizes that are individually weight rated, creating a perfect way to hold, secure and connect everything from keys to water bottles to gear. FEATURES High-quality stainless-steel construction Secure stainless steel wire gate closure Size #2: Dimensions: 0.9″ x 2.0″ x 0.3″ | 22mm x 50mm x 8mm Weight: .24 oz | 7 g Weight Rating: 10lb Size #3: Dimensions: 30mm x 68mm x 10mmWeight: 15gWeight Rating: 11.3kg Size #4: Dimensions: 3.52″ x 1.57″ x 0.31″ | 89.41mm x 39.92mm x 7.94mm Weight: 1.06oz | 30.00g Weight Rating: 75 lb. Size #5: Dimensions: 4.38″ x 1.93″ x 0.33″ | 111.41mm x 49.19mm x 8.45mm Weight: 1.69oz | 48.00g Weight Rating: 100 lb. SIZE #6 – Dimensions: 75mm x 117mm x 15mm– Weight: 84g– Weight Rating: 45kg