About this Credit Card Magnifier With Business Card Carrier Case:
3x magnification Fresnel lens.
Hold 2" to 3" from subject for best performance.
Includes Made in USA case.
Case has a transparent front and white back.
NOTE: Product comes with Prop 65 warning label. Label reads: "WARNING: This product may contain carcinogen, which is known to the State of California to cause cancer, birth defects and other reproductive harm. For more information, go to www.P65Warnings.ca.gov.