Pack of 6; two each of mole, vole, bird These Skeleton Pellets are 100% synthetic, making them safe and sanitary to dissect. The student doesn't have to wear gloves to dissect them and will always have an entire skeleton with these pellets. The packs contain a teacher instruction sheet, bone-sorting chart and an equal amount of each of these skeletons: mole, vole, and bird. Ages 8 and up.