The Vortex Diamondback HD 10 x 28 Compact Binoculars are a high-quality optical device designed for various applications such as hunting, birding, and general purpose viewing. Featuring fully multi-coated HD glass lenses with a 28mm objective diameter, these binoculars offer sharp and clear images with a maximum magnification of 10x. The compact size and waterproof, fogproof features make them ideal for outdoor use in all weather conditions. The Vortex binoculars provide reliable and exceptional performance for any outdoor adventure. I have taken them out of the box indoors and looked through them once but never used outside. The box has been stored in the cupboard so won’t be in pristine condition, it has a couple of tiny dents but is pretty good apart from that.