Bushnell Pacifica 20x 50mm Super High-Powered Porro Prism Binoculars Porro-prism binocular with high powered 20x magnification and a large 50mm objective diameter Patented 1-touch InstaFocus system holds your subject in sharp focus Rubber armored for protection and a secure grip in all weather conditions Fully coated optics for improved clarity and light transmission Low-profile design allows you to keep them in place while wearing a mask, helmet, hat, or while using phone, headphones, or supplemental hearing muffs