Full size binoculars Full 10x magnification and compact 42mm lens binoculars, provide closer and more detailed image than 8x, enjoy the beauty of distance.Bird watching binoculars 42mm object lens can pick up more light than 40mm or 32mm, it is a wonderful size for observing nature or animals in detail. Recommended for bird watching.Travel binoculars Roof prisms and PPS housing make it 15% less weight than porro prism binoculars. You can store it in your suitcase or hang it around your neck without load.Vivid and crisp image The fully multi-layered coating on the prisms contributes to the very high light transmission. The result is a vivid, crisp image with razor sharp edges.Comfortble View Wide eye distance range of 57-74mm, provide comfortable view for both women and men. UV protection to protect the eyes from the harmful rays of the sun.