Senior Airman John Baller, 28th Force Support Squadron fitness specialist, applies lubricating silicone spray to fitness equipment during routine maintenance at the Bellamy Fitness Center on Ellsworth Air Force Base, S.D., March 13, 2012. The equipment is maintained weekly to ensure it operates properly which also extends the life of all the equipment at the center. (U.S. Air Force photo by Airman 1st Class Alystria Maurer/Released)