Retro Round Frame Reading Glasses 44 mm x 44 mm. Available in Black, Brown, Tortoise, Transparent, and Red frame colours. Lens Strength Variations: +1.00, +1.25, +1.50, +1.75, +2.00, +2.25, +2.50, +2.75, +3.0, +3.50, +4.0. Lightweight and stylish fashion accessory.