Littmann Cardiology IV Diagnostic Stethoscope, 27″ L, Raspberry Tubing, Standard (Machined Stainless Steel) Chestpiece Finish, Tunable, Dual-Sided Stainless Steel Chestpiece with Open or Closed Bell, Non-Chill Bell Sleeve, Dual-Lumen Tubing, Soft Sealing Eartips, Latex-Free.