YEESAM SWIM Diving Mask Prescription Nearsighted Myopia Myopic - Scuba Dive Snorkel RX Optical Corrective Lenses Customized Super-Soft Silicon Skirt & Dual Safety Tempered Glass Lenses Suitable for all adult faces and children over 7 years old. The Package Includes 1 (one) diving mask and transparent protective carrying case with our logo - YEESAM SWIM&reg; If you don't need corrective lenses, please select "PLAIN" option for plain glasses Available corrective lenses: -1.5, -2.0, -2.5, -3.0, -3.5, -4.0, -4.5, -5.0, -5.5, -6.0, -6.5, -7.0, -7.5, -8.0, -8.5. IF YOU NEED DIFFERENT CORRECTIVE LENSES ON EACH SIDE. PLEASE SELECT "DIFFERENT 2 EYES" OPTION AND SEND US A MESSAGE WITH YOUR PRESCRIPTION AFTER PLACING ORDER. IF YOU SELECT ONLY ONE PRESCRIPTION OPTION (EX.-2.0), IT MEANS YOU ARE ORDERING SAME PRESCRIPTION FOR BOTH EYES We strive for 100% customer satisfaction. Your positive feedback with 5-Star will be greatly appreciated! If any problem, please contact us before any harmful action to be taken. We will give you a satisfactory solution as promised