Product Name: High Quality 3.5X Dental Loupes Optical Glass Lenses Medical Devices Model NO.: WM-288 Material: PVC Usage Times: Non-Disposable Feature: Waterproof Nature: Specialized Equipment, Public Equipment Application: Pet, Adult, Child Certification: ISO9001, ISO, CE Condition: New Magnification: 3.5X Working Distance: 420mm Weight: 0.5kg Trademark: VIMEL Transport Package: Carton Specification: 19*13*7cm Origin: China(Mainland) Product Description Magnification 3.5XWork distance330mm/420mm/550mmView field120-150mmN.W100gPackage size185*125*70mmInside itemswipe cloth, desiccant,dirt-proof bootPlace of OriginChina(Mainland)2. Basic function: PD one-way move to adjust,manual focus.Features:1.wide view field,long depth of field,high resolution,low magnification,quick positioning,more exquisite3. Variable function: wearing way variable,surface color variable4. Shortage: high price.