SPECIFICATIONSBrand Name: HUILEYOrigin: Mainland ChinaModel Number: MGXS023Light Source: NoneCertification: noneMaterial: acrylic, coated optical lensStyle: Wearing StyleWith Light Or Not: No Dentistry Binocular Magnifier Ultra-lightweight Dental Loupe Magnification 2.5X 3.5X Magnifying Glass for Dental Surgery High Quality Specifications: Magnification: 2.5X / 3.5X Depth of view: 90 mm / 80 mm Field of view: 100 mm / 60 mm Working Distance: 320-420 mm Material of the Loupe Lens: optical glass Tips: Only the glasses and loupe included, NOT includes the head light. Package Included: 1x dental loupe with glasses 1x head strap 1x cable clamp 1x clip 1x screwdriver