Each of the two telescopes in a pair of binoculars is equipped with a small concave lens, called the eyepiece, or ocular, and a large convex lens called the objective. Handcast in solid, lead-free pewter, each of our pins is an original three dimensional sculpture signed by the artist, Jim Clift. Handcrafted in our studio in Coventry, RI, our pins are 100% US made.