The unique-looking chest piece is sturdy dependable and delivers up to two times the amplification of conventional stethoscopes. Made of a lightweight acrylic the crystal chest piece can be personalized with pictures logos or even stickers. Just unscrew the metal diaphragm retaining ring and insert a favorite photo. Stainless steel inner spring binaural heavy-walled 22in vinyl tubing blocks out extraneous sounds. Overall length is 30in. Comfortable small rubber threaded ear tips stethoscope ID tag. Latex Free.