The Miles Gilbert magnifying headband is designed to allow you to work on small detailed parts related to firearms. This visor is perfect for applying checkering, inletting and action work on firearms. They are also ideal for small hobby projects like models or miniatures or any projects that require close observation. The accessory loop for close inspection comes standard and the adjustable padded head strap will ensure that you can achieve a comfortable fit. The visor can be used in conjunction with prescription glasses.