Cowboys from different ranches take a break from the work of branding, innoculating, tagging and in the case of males, castrating calves at Ponoholo Ranch in North Kohala, Hawaii. Indispensable to the cowboys are their knives which they carry on their belts. "Sometimes you have to cut yourself free of a rope to prevent yourself being pulled off your horse or getting an arm or leg caught," says Wayne Tachera who himself lost a finger in a roping accident.