Fast Focus 4x30 Coated Compact Porro Prism Binoculars Black w/ Carrying Case The Fast Focus 4x30 Coated Compact Porro Prism Binoculars in Black come with a carrying case, making them convenient to transport and store. With a compact size and a 30mm objective lens diameter, these binoculars are ideal for outdoor activities and wildlife viewing. The coated lenses provide clear and sharp images, while the Porro prism design ensures a bright and comfortable viewing experience. The Fast Focus feature allows for quick and accurate focusing, making these binoculars a reliable choice for any nature enthusiast or hunter.