There is no better way to learn to use the most widely used stethoscope than with a Teaching Sprague.By incorporating a standard Sprague-Rappaport chestpiece attached to two separate tube and binaural sets, the Teaching Sprague enables instructors to teach students the finer points of auscultation. 
Includes:
Soft PVC eartips, adult and pediatric diaphragms, pediatric disk and diaphragm assembly, pediatric and infant bells
Overall length: Approximately 31.5"
Lifetime Warranty with free lifetime replacement parts