Wave Prescription Myopia Snorkeling Dive Mask Top Dry Snorkel Set Adult Black Nearsighted

Model Number: diving mask M1395 and dry snorkel S-6173
Product Name: Professional Black Prescription Myopia Diving Mask Top Dry Snorkel Set

Item: Myopia Scuba Diving Mask M-1395
Mask lens: Tempered glass
Mask skirt: Silicone / PVC
Mask head strap: Silicone / PVC
Buckle: Auto-clip buckle system
Usage: Snorkeling
Age: Adult
Size: about 16*11cm

Item: Dry Snorkel S-6173
Material of mouthpiece: Silicone/TPR/PVC
Material of tube: PVC
Design: Dry Top
Age: Adult

Color: Black

Users: free diving, scuba diving, snorkeling, swimming

Features:
Won the design patent of diving goggles
High-definition polycarbonate lenses, good news for people with myopia;
Professional ergonomic design, widened silicone, comfortable fit, strong adsorption, strictly prevent water leakage, suitable for various face shapes.

Package Included:
1 x diving mask
1 x snorkel


[degree selection]
The degree you choose = your astigmatism degree / 2 + myopia degree minus 50 or 100 degrees.
Because the refractive index of water is different, it is necessary to subtract 50 or 100 degrees to avoid excessive height, which will make people easily dizzy.
Example: Astigmatism is 100 degrees, myopia is 500 degrees, then 100/2+500-100=450 degrees Then you can choose 450 degree or 500 degree swimming goggles.