Abstract: An indicator vial including a liquid and a colored gas that contrasts with the liquid to provide a highly visible drop or bubble within the vial. The color of the gas is selected to contrast significantly with the liquid. The color of the liquid and of indicia disposed on the exterior of the vial can be selected to further enhance the contrast between the gas and the liquid and/or the indicia, to enhance visibility of the indicator within the vial.

Abstract: A level case includes a tubular body having a series of walls that define an internal cavity, and a cap that selectively closes the internal cavity. A series of indentations are formed in the walls, and are configured to receive and engage the corners of a level received within the internal cavity. The internal cavity defines spaces between the level surfaces and the facing surfaces of the walls, to protect the level surfaces in the event the walls of the tubular body are subjected to forces that cause inward deformation of the walls. The cap is configured similarly to the tubular body, including indentations that receive the corners of the level. The cap is engaged over the opening of the tubular body so as to enclose a portion of the level that extends outwardly of the tubular body. The indentations in the tubular body are continuous throughout a majority of the length of the tubular body.

Abstract: A suspension-type packaging arrangement for a product includes an upper engagement section having an opening to receive a hook or the like, a lower product support section, and an intermediate display section located between the upper engagement section and the lower product support section. The product is secured to the product support section, and is exposed to allow the user to handle the product so as to evaluate and test the product prior to purchase. The upper engagement section and the lower product support section are configured so that the center of gravity of the product is generally in line with the location at which the hook engages the upper engagement section, so that the packaging arrangement and the product hang in a generally vertical orientation for display. The intermediate display section is defined by an outwardly facing wall, and may be configured to releasably secure a display card containing product information that is visible to the potential purchaser.