Stainless steel stethoscope *Excellent sound conduction *CE, FDA, ISO certificates *OEM service offered Features: 1) For adults, cardiology type, feature a deep cone-shaped bell 2) Chest piece comes with non-chill ring 3) With inner spring binaural tubing assembly 4) With uniquely designed binaural thick tubing assembly 5) With spare fitting box Inner packing: 1pc/deluxe box