Whale brand Professional spearfishing scuba myopia and hyperopia gear diving mask with Optical Corrective Lenses for Diving or Snorkeling Soft liquid injected 100% silicone mask skirt sits comfortably against your face and provides a secure fit. Stainless steel roller pin buckle assembly for durability and easy mask strap adjustment. Scratch resistant tempered glass lenses,CE certification Versatile fit for both adults and older children. Ideal for recreational diving and snorkeling. Myopic lens:-200/-250/-300/-350/-400/-450/-500/-550/-600 Farsightedness glasses:+150/+200/+250/+300/+350 If you need the different degree,please leave a message!