The 170 Series is our premium concave convex eye with round pupils. The concave convex crystal is a more hemispherical shape and works well for certain animals where the cornea protrudes in a ball-like fashion. These eyes are hand painted in vivid detail and incredible color. Useful for an incredibly wide range of animals these eyes are sometimes used for birds as well as mammals. These are our best selling eyes for Bear, Boar, Coyote, and Wolf.