The pacemaker tray contains various surgical instruments including retractors, forceps, scissors, and needle holders. Rake retractors are claw-shaped tools used to hold soft tissues during surgery. Stevens tenotomy scissors have long handles and small, sharp blades used for cutting membranes in procedures like ophthalmology and neurosurgery. Potts-Smith scissors have angled jaws between 25-90 degrees for trimming vessels in cardiac and thoracic surgeries. The tray is equipped for both general and specialized procedures.