Hammond 1590BGR compact diecast prefinished aluminum enclosure for guitar effects projects. Rugged diecast aluminum alloy, tough yet easy to machine. Measures 4.4"X2.4"X1.2". Lap joint construction provides protection against dust and splashing adult beverages, also provides EMI/RFI screening. Prefinished in green power coat for lasting finish, even after machining. Smooth paint allows for easy adhesion of labels and/or silk screening. Paint is applied only to the exterior surface to maintain RFI/EMI integrity. Nickel plated closure screws are included.