Lifetime Outdoor Storage Box - Features an interior capacity of 130 gallons. Comes in (1) box. 10-year limited warranty. Need to expand your patio storage, but have limited space available? Store your things outside in a Lifetime Storage Box. The rigid, double-wall, high-density polyethylene (HDPE) construction makes the box strong and durable. It's UV-protected construction, and the weather and water resistant seal helps keep the interior dry. The spring-hinge lid opens greater than 90 degrees, won't slam shut, and is lockable.