The glass is easy to use and does not require any special skills or training, which could help and repair professionals identify and diagnose problem with greater accuracy and speeds. The glass enables users to work with greater precision, increasing the efficiency of their work. Features -Color:Assorted Color -Material:Glass, Metal -Size:3.50X3.50X3.00cm/1.38X1.38X1.18in -Magnification: 15 times - Ensures tiny details of the watch are visible, an indispensable tool for precision work. - glass can help to reduce the risk of damaging delicate watch components while performing repairs or maintenance. - Watch glass can be used to inspect or watches, helping to identify wear, damage. - Removable steel wire straps for fixing the glass on the head. design and hand free, comfortable to use. - Scope of application is wide, industrial use, circuit board and printing industry, and , watch repair, etc. Package list: 5 x Glass