The XS-UTL4 Half Trunk Utility Flight Case with Casters from ProX is a very strong ATA flight case made to sustain impact and protect equipment during long travel. The inside of the case is lined with hard rubber foam pads, and the case is made of 3/8″ thick plywood covered by a black laminate. The case is reinforced with tongue and grooved aluminum railings and steel ball corners.

All railings and corners have been fastened with industrial rivets. The lid has spring-loaded handles with rear hinges to keep the lid open, and butterfly-twist latches to close the case. At the top of the case are caster dishes for stacking, and at the bottom is a set of four 4″ casters with brakes on two of the wheels. The inner rubber lining of the case contains 70% recycled material, and 80% of that material comes from recycled plastic bottles.