Table/ Clamp magnifier with adjustable arm. Can be clamped onto tables or other work surfaces and secured with fold-out support feet. Flexible yet sturdy metal arm. Lens diameter: 3 7/16 (88 mm). 2.5X magnification. Integrated small lens with 13/16 (21 mm) diameter and 5x magnification. 2 white LEDs. Includes 3 AAA batteries.