The Hawk 21mm 10x triplet loupe by Swiss-Axe has an ergonomic shape for a comfortable grip, and the Hawk's exclusive locking mechanism keep the lens protected at all times. Its European made lens is aplanatic and achromatic and has an anti reflection coating to minimize reflections. The loupe comes in a protective box with a loupe chain with detachable clip. It comes with a numbered certification and warranty document and is protected by a world wide registration.