Description Features Streamline design and attractive appearance Metal material and gorgeous color A variety of colors to be chose Easy operation: suitable for children, adolescents, and adults Easy to carry, suitable for all kinds of occasions Self-check, do not need others’ help Professional website service, interaction, sharing, and vision data Permanent preservation Technical Specifications Sphere Range -12.0 D to 6 D Spherical Degree Wide Interval ± 0.5 D Spherical Tolerance ± 0.25 D Power 3 AAA batteries Size 7.87 in x 3.94 in x 2.55 in (200 mm x 100 mm x 65 mm) Net Weight 10.54 oz (299 g)
