The unique-looking chestpiece is sturdy, dependable and delivers up to two times the amplification of conventional stethoscopes! Made of a lightweight acrylic, the “crystal” chestpiece 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 binaurals, heavy-walled 22” vinyl tubing, in five great jewel tone colors, blocks out extraneous sounds. Overall length is 30”. Comfortable small rubber threaded eartips, stethoscope ID tag and lifetime limited warranty included.