ExploreOne 6x21 Binoculars ExploreOne 6 x21 binoculars. The binocular lenses and prisms are from optical glass material 6x magnification lens diameter 21mm rubber coated including nylon wrist strap and bag Comes with a carry bag that has a loop that they can strap onto a belt Magnification 6x Objective lens diameter 21mm Includes nylon carry bag