The mask would be perfect for both snorkelling or serious scuba diving. The mask is used and in good condition. "Twin Lens" where the glass is two (or more) lenses / face plates. One for each eye usually !
20ml Anti Fog Agent for Swim Goggle Glass Lens Dive Mask Car Anti Mist Spray UK
100ml Anti Fog Agent for Swim Goggle Glass Lens Dive Mask Car Anti Mist Spray
Speedo Dive JUNIOR SPEEDO WINDWARD MASK Single-Window Lens, Soft Skirt BRAND NEW
