Nobody wants a wreck to happen which is why Martin Saddlery only uses the best quality products to ensure longevity. The flank cinch hobble strap has one of the most important jobs that often gets overlooked. Ensure your safety by using the right flank cinch hobble strap for your needs. This regular size strap is made for the 2-1/2" and 4-1/2" flank cinches. If you are using a 7-1/2" or 8-1/2" flank cinch be sure to look at the roper size hobble strap. Flank Cinch Hobble Strap, Regular. For use with 2-1/2" and 4-1/2" flank cinches.