4S1590B Die Cast Aluminum Enclosure (same dimensions Hammond 1590B). These 1590B aluminum alloy die cast boxes are the type used by many boutique guitar pedal manufacturers and in DIY kits. They are a little larger and higher than 1590B enclosures, which makes it easier to mount components. The dimension are: 4.39" x 2.34" x 1.06" (112 x 60 x 27mm)

The bottom fits snugly with the top with no flashing. Four stainless steel screws are included.

Condition: These are brand new, fresh from the factory.