Internal Bag separates the urine from the pressurizing agent so there is no contamination. System allows the entire product to be dispensed. Sprays longer than traditional spray cans. Tink's #69 Doe-In-RutA(R) Buck Lure is 100% natural doe estrous urine collected from live whitetail does during their estrous cycle. Tink's #69 Doe-In-RutA(R) Buck Lure America's #1 Buck Lure! Features: Only 100% Pure Urine is dispensedQuieter spray won't spook deerConsistent spray without "spitting"Sprays at any angle, even upside downPowerful fine mist for long range attractionContains 3oz. of Tink's #69 Doe-In-RutA(R)