Opticron LED Magnifier 15x 21mm Black/Grey. Specifications for Opticron LED Hand Magnifier 15x 21mm: Manufacturer: Opticron Magnification: 15 x Objective Lens Diameter: 21 mm Color: Black Depth/Thickness: 34 mm Width: 39 mm Magnification Type: Fixed Weight: 1.8 oz Package Contents: Opticron LED Hand Magnifier 15x 21mm Case Opticron 57520: LED Magnifier 15x 21mm Black/Grey Not applicable