The Glass Optics for Flashlights is ideal for use in a number of DIY products. The high quality lens can also be used as a replacement for damaged convex lenses in flashlights or to upgrade a model. The lens measures 28 millimeters in diameter and improves the brightness of a standard flashlight. Made out of real glass instead of plastic the lens is carefully crafted and is crystal clear. You can easily fit into flashlights of compatible size and the high quality glass material will resist scratching. The glass optics lens is .71 inches deep and weighs .35 ounces. Normal 0 7.8 ? 0 2 false false false EN-US ZH-CN X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:????; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri""sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} - Converging glass lens with smoothed edges - Fine workmanship and easy to set up - Good for DIY projects