CAMTOA 10-90x25mm Pocket Mini High Power Zoomable Optical Monocular Telescopes Outdoor Black Used BAK4 prism which is more clear and great through rate. FMC broadband plated green film. Fully-coated lenses reduce glare and increase brightness. Made by full metal, solid but mini, lightweight, one hand grip,easy to carry. Comes with a protect mirror cover, colorful packing box, hand strap, lens wiping cloth, manual and cetification.