adult stainless steel stethoscope rainbow similar type with tunable diaphgram dual frequency dual side

(Littmann III type, rainbow hue) CM-4136 Pro III adult high-quality stainless steel stethoscope with a rainbow chestpiece and twin adjustable diaphragms Features: 1. A 45mm-diameter stainless steel chest piece in a hue reminiscent of the Littmann rainbow 2. The chest piece is a single piece with a tunable/double frequency diaphragm on both the big and tiny bells. 3. Stainless steel binaurals are available in either all-black or all-gold. 4. The color of the Y-shaped tube might vary. 5. supple sili