YINGNEW Spy Thumb Monocular Telescope Mini Spotting Scope with Ring Water Resistance 1. 2.5X 17.5mm ,As a result of three 2-group lens, so clear imaging, imaging bright, clear and bright 2.Mini sized 1.34x0.83in to fits in your pocket ,come with special protection carry box 3.Full Metal Body and metal ring , One-handed operation only use 2 fingers will be able to focus come 4.Widely used for Camping, Bird Watching ,Hunting,Hiking, Fishing and etc 5.Jackie Chan Used in Police Story and Rush Hour movies