The LED Magnifying Glass Lamp and Clamp has been designed for very small and fine needlework, such as embroidery, sewing and reading small print. This lamp features an LED light to reduce the strain on your eyes while working, three flexible hinges for easy positioning and a clamp that allows the magnifying glass to be attached safely and firmly to your work surface. The 4 x 1.5 V batteries LR 6 AA are not included. There is an adapter socket for a power supply.Features & Benefits Includes 1 LED Magnifying Glass Lamp & Clamp Specification Magnifying Glass Diameter: 12cm