KuduCase 21.9 x 13.7 x 9.8" Multi-Purpose Waterproof Protective Equipment Hard Case with Wheels and Pick 'N' Pluck Foam KuduCases are constructed from high impact resistant Polypropylene KuduCases come with customizable pre-cubed foam inserts to make the perfect snug fit for your gear KuduCases have pressure equalization dials to release pressure from changing atmospheric conditions KuduCases are kept waterproof by form fitting gasket and tongue and groove fit KuduCases use solid and secure dual latch system