A single reproduction Brace Strap, W.E. Pattern 37. Here is a single strap for use with Canteens, Bino Cases and other types of P-37 gear. Also great to fill out a pair if one is missing. These are the Left Strap with the loop on the back for the Right Strap to pass through. The Right Strap has no loop. Fully adjustible like the originals.