Waterproof, crushproof, and watertight, the 3000 Series Waterproof case from OtterBox protects valuables from the elements in all kinds of conditions. This watertight case floats and offers the ultimate in protection and storage for GPS units, cell phones, Gameboys, satellite pocket mail units, handheld PCs, and much more! Designed to handle submersion up to 100 ft. Includes a lanyard for convenient transportation. Exterior dimensions: 8.813" x 5.175" x 2.008". Interior dimensions: 7.639" x 3.723" x 1.229". Weight: 13.92 oz.