Sterilized barn owl pellets 2.5" and up. (OR, WA, ID, UT) This is the best value as each BARN OWL pellet can be shared by two students and often include more than two entire skeletal remains of the prey. Pellets have ranged as high as 3" to 4" and average about 2.5" to 3". Includes equal number of dissection sticks and download of guide. Harvested from natural nesting sites in the Western US states.