For the 1st time in the world, we developed innovative binocular for all sports game. Our ez-biocular is specially designed to be attached to any kinds of caps. It&＃39;s innovative and ideal for all kinds of sports. ( ex: golf gallery, soccer field, volleyball court, baseball ground, horse racing, climbing, fishing, show performance, theaters etc.) It magnify 3. 8 times bigger from 400-500meters of distance. It intercepts ultraviolet rays with special ruby coating to lens and relieves fatigue of eyes and protects eyesight. It is automatically adjusted in magnifying rate without iris and it doesn&＃39;t cause eye fatigue and headache. This product is the first of it&＃39;s kind in the world and just come out to the market.