Handcrafted Since 1971 | Free-parts-for-life Program | Lifetime Warranty | Latex-free |ALL-PURPOSE LIGHTWEIGHT STETHOSCOPE > Durable, convenient, lightweight, and high sound performanceIncludes 3 pairs of MDF ComfortSeal eartips: Small, Regular, and Large. Eartips are included in our Free-parts-for-life ProgramThe super-duty, lightweight aluminum dual-head chestpiece is precisely machined and hand polished for high performance and durabilityPREVENT PUNCTURED EAR DRUMS Patented SafetyLock Eartip Adaptors