The teardrop-shaped diaphragm of this stethoscope makes auscultation around blood pressure cuffs easier. Weighing just 118 grams, it's the lightest of all 3M Littmann adult stethoscopes, making it comfortable for caregivers. The soft-sealing eartips provide an excellent acoustic seal and comfortable fit, while the resilient tubing retains its shape and flexibility even after folding. The next generation tubing is latex-free and does not contain any phthalate plasticizers. The Lightweight II S.E. Stethoscope is made in the USA and complete with self-sealing eartips and instrtuctions.