Two steel walls made by strong and sturdy 3mm outer steel Plates with inner 2mm plate. Packed with ceramic mineral Wool thermal insulation as per international standards, 6mm Door made of mild steel plate. Fitted with one/ two Nos mechanical lock depending on height of Locker or Electronic locks if the customer chooses. 2/3 Removable Shelves making 3/4 compartments. As per Customer Choice.