CONSTRUCTION: Sized for cell phone, wallet, and other small items Survives 30 min. hauled overboard 1 meter deep in water High-strength protection with airtight seal of Dri-Loc (R) O-ring and quick cam-action latches Anti-slip rubberized pad holds fragile items still for less movement inside box Wrist strap allows hands-free carrying 9.06 in. L x 3.13 in. H