Promate Scope Dive Mask for Snorkeling Scuba Diving Swimming - MK245 scuba diving BCD pocket knife *Dual silicone exhaust valves which

*Dual silicone exhaust valves which directs bubbles away from mask

5 diopter increments)

Attached with rubber slide-on boot

*Sealed around face

10 1/4" Overall Length

Promate Scope Dive Mask for Snorkeling Scuba Diving Swimming - MK245 scuba diving BCD pocket knife *Dual silicone exhaust valves whichPromate MK245 Scope Scuba Dive Mask (Rx Able) Ideal for standard medium faces (universal fit) face seal size W4 1 2 * H3 3 8. Crystal, liquid silicone injected skirt and strap. Double edge comfort seal. Ultra low volume. Broad peripheral view. Tempered glasses. How to measure your face to see if this mask fit you. If you look in the description there is a face seal size. You would need to measure the width and height of your face. Width is from one