Grade is +2.50 for all 3 👓BIFOCAL LENS with BLUE LIGHT BLOCKING FUNCTION] - The bifocal lens correct both near- and long-distance vision by combining two prescriptions into a single lens, allow you to comfortably shift between reading and looking at something in the distance, such as watching TV. No more need to put them on and off frequently, bring great convenience to your daily life. These blue light blockers also filter harmful blue light, give you a healthier life. [👓VALUE 3 PACK] - Packing includes a pair of bifocal reading glasses blue light blocking, a pair of outdoor reading glasses, and a pair of blue light blocking reading glasses. 3 different styles with different functions can be used as you like! The outdoor reading glasses are perfect for reading at the beach or outside with UVA and UVB protection. As for another two pairs, you can keep a pair at your desk or your favorite reading area, enough for your daily life. [👓QUALITY MATERIAL & COMFORTABLE WEAR] - These glasses use AC lenses and PC frame feet. Lightweight but good anti-fog performance. Wearing our modern, trendy reading glasses with a flexible spring hinge design, keep you look much younger and bring the best protection for your head. These blue light filter glasses can be perfect gifts to your parents and the elder on Christmas, Thanksgiving, Father's Day, and Mother's day!