Product Description
Features
VB-15/ HB-16
VB-15: Diopter():1,2,3,4,5,6,8,10,12,14,16,18,20,25,30
HB-16: Diopter():1,2,4,6,8,10,12,14,16,18,20,25,30,35,40.45
Specification:two pcs are packed in one box.Diopter(vertical):1,2,4,6,8,10,12,14,16,18,20,25,30,35,40,45diopter(horizontal):1,2,3,4,5,6,8,10,12,14,16,18,20,25,30
