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SMC Locking D Carabiner Alloy Steel Large NFPA21001 is a high-quality carabiner designed for outdoor sports and climbing. 
Made from durable alloy steel, this D-shaped carabiner is sized large for added strength and reliability. 
The locking mechanism ensures security while using it for various activities such as caving, hiking, and rappelling. 
With its NFPA21001 model designation 
This carabiner is a trusted choice for adventurers and outdoor enthusiasts looking for a reliable and secure equipment option.