Hammond 1551 Series Miniature ABS Boxes Translucent Blue – Hammond 1551NTBU, A range of miniature translucent blue enclosures that are constructed from moulded ABS and are available in various sizes. Their lap joint construction and self-tapping screw lid means these enclosures are ideal for use as potting boxes and mounting small printed circuit boards. Dimensions 35 x 35 x 15. Hammond 1551NTBU Miniature Plastic Enclosure 35 x 35 x 15 Transparent Blue