BUD Industries ABS plastic with UL 94V-O flammability rating suggested service temperature of -20 to 70 degrees C Comes with close fitting interlocking lid and assembly hardware Made of ABS plastic Black recessed finish External measures 4-19/32" length by 4-19/32" width by 2-23/64" height; internal measures 4-21/64" length by 4-21/64" width by 2-5/32" height