Case is made from 9.5 mm birch plywood with a black rigid PVC finish. The case is fitted with interlocking aluminium sections to the joint edges to give a splash proof seal. Edges are fitted with 30 mm aluminium angle riveted every 100 mm. Large zinc coated pressed steel ball corners and edge brackets will increase strength and protection. The lids are secured to the case with butterfly type catchese. Recessed sprung handles are fitted as shown.