Buck Bomb XTRUS is certified to contain levels of estrogen found in whitetail does. Each batch is lab-tested and certified for maximum estrogen levels before ever going into a "bomb" can. XTRUS uses a patent-pending deer urine collection method that provides fresh, peak estrus urine. Each can of Buck Bomb features the NVERTR 180-degree ball valve that allows it to be sprayed in short bursts - even upside down. Or, lock down the valve and empty the contents all at once to unleash a potent cloud of scent that can travel in excess of a quarter-mile on a 3mph breeze.