The interdigital gland is located between the deer's hoofs and emits a glandular secretion with a potent odor. Pete Rickard's Interdigital Gland Scent is like a human fingerprint and is individual to each deer. Deer leave minute amounts of interdigital as they walk. They use this to help them locate each other. Hunters will have the best success when they use it to lay a scent trail to lure deer to their stand. It's so pure and potent, just 3 or 4 drops move bucks and does from cover. Attracts them any time of year. 100% natural. 1.25 oz bottle.