Light and compact, the Cressi® Focus Mask was designed using innovative manufacturing technology. A low internal volume allows the mask to stay close to your eyes and expands your line of vision. Revolving strap buckles allow for easy adjustment, to create a water-tight seal around the face. Perfect for snorkeling, scuba diving and skin diving. FEATURES: Light and compact, ideal for snorkeling, scuba diving and skin diving Two lens mask, tempered glass Soft silicone skirt complete with seal ring for improved fit and comfort Low internal volume Minimum eye-lens distance provides excellent visibility in all directions Strap buckles revolve for instant adjustment, easily adjustable Dimensions of frame: 157 x 70 mm Weight: 175 g Designed and created using innovative and patented manufacturing technology Manufacturer’s 2-year warranty Model: DS2410, DS2420 For additional information relating to the Manufacturer's Warranty, please contact 201-594-1450.