Our Clean minimal effective the Single Vision Rimless Reading Glasses are for the modern reader who wants performance without the fuss. Specifications at a glance: True rimless frameless design | Adaptive one-power zoom lens | Power range +0.75-+3.00D | Weight <10g | Corrosion-resistant temple arms | Clear optical lens USP: The iReaders' lightest and most discreet reading glasses, perfect for first-time eyewear wearers who prefer a comfortable and unpretentious feel. Advantages: Renders at less than 10 g A streamlined, frameless structure complements any face Self-adjusting power: eye test not required Excellent for near & mid-range viewing Entry level reading glass priced just under 400. Suitable for: First-time readers students working professionals.