Sophisticated black rectangular lenses off-set by rustic wood print arms make the Griffin readers the perfect combination of clever and cool. The black plastic frames will easily work with any ensemble, and the wooden portion adds a bit of the outdoors to these otherwise great eyeglasses. When not taking in their surroundings, keep the Griffin glasses snug in the matching included case. Features: Anti-Reflective coating to prevent glare Aspheric lenses to prevent distortion Spring hinges to maximize comfort Power range: 1/4 powers from +0.75 to +3.00, +3.50, +4.00 Lens Width: 49mm Lens Height: 26mm Bridge Distance: 16mm Arm Length: 139mm