100 large pellets with Teachers Guide and (15) Bone Sorting Sheets packed in a handy 2-gallon bucket and resealable lid for clean and easy storage between classes. These top-quality specimens measure at 1.5 in. or longer and contain at least one skeleton. Wonderful tool for classrooms of all ages. Instantly engage your students with hands-on, real science exploration into the fascinating world of the barn owl and an introduction to the skeletal anatomy of mammals. Graded, heat treated, foil wrapped and ready for your classroom. Carefully graded for size and bone content our goal is a memorable and educational session of learning for your students. Barn Owl Pellets are collected in the Pacific NW and contain the remains of a wide variaty of prey. Mountain Home Biological of White Salmon, Washington, the finest specimens at the best price since 1994. Monthly samples are submitted to an independent lab for testing. These top-quality specimens measure approximately 1.5+ in. and contain one or more skeleton prey. Our pledge to you is complete satisfaction, from the time your order is received by our knowledgeable staff, to the arrival of your carefully prepared specimen. The concepts of natural history, ecology and predator/prey relationships may all be found in this mysterious fur ball.