Interior Dimensions: 8.18" x 5.68" x 3.62" (20.8 x 14.4 x 9.2 cm). Watertight, crushproof, and dust proof. Open cell core with solid wall design - strong, light weight.O-ring seal. Automatic Pressure Equalization Valve. Stainless steel hardware. Pick 'N' Pluck? with convoluted lid foam. Unconditional Lifetime Guarantee of Excellence.