A stainless steel stethoscope's specifications include a durable, high-quality stainless steel chestpiece designed for acoustic sensitivity and reliability, a dual-head design for listening to high and low-frequency sounds, comfortable, soft-sealing ear knobs, and durable, latex-free tubing resistant to skin oils and cracking. Specific dimensions, such as overall length, can vary by model, with professional models like the Littmann Classic III Stethoscope offering features like dual-frequency diaphragms.