Senior Master Sgt. Peter Girtz, 372nd Training Squadron Detachment 8 chief, provides a whole blood donation for a blood drive sponsored by United Blood Services at the Entrican Center here, May 1. Sergeant Girtz repeatedly squeezes a ball provided by Shayla Bingham, United Blood Services donor care specialist and phlebotomist. The ball quickens blood flow while speeding up the donation process. (U.S. Air Force photo/ Airman 1st Class Abigail Klein)