The Gammex 175 Universal Test Stand simplifies radiographic and mammographic testing. The height easily adjusts and the cassette holder accommodates a variety of film cassette sizes. Ideal for measuring focal spot size with a slit camera or star resolution pattern, the Universal Test Stand also includes a number of inserts used to define magnification and simplify alignment of the x-ray system. Half Value Layer measurements can also be performed. The kit includes the base, telescoping platform, shim tool, slit camera mounting insert, gunsight alignment tool insert, magnification insert, HVL top plate, intensifying screen, vinyl/rubber face shield, and carrying case. This product includes a 5-year warranty.