Fujifilm Prescale tactile surface pressure indicating sensor film is ideal for measuring surface pressure between any two mating, contacting or impacting surfaces. The contact pressure film immediately and permanently changes color in proportion to the amount of force being applied providing the user with a detailed color “map”, a Pressuregraph of pressure distribution and magnitude (in PSI) between your contacting surfaces. This kit contains everything you need to use the contact surface pressure indicating sensor film.