MDF MD One Stainless Steel Premium Dual Head Stethoscope - Free-Parts-for-Life & Lifetime Warranty (MDF777-07) - Pastel Purple Handcrafted Since 1971 | Free-parts-for-life Program | Lifetime Warranty | Latex-free | 100% stainless steel construction and acoustically-superior stainless steel Includes 3 pairs of MDF ComfortSeal eartips: Small, Regular, and Large. Eartips are included in our Free-parts-for-life Program SECURED TWICE Dual-leaf spring construction offers twice the durability PREVENT PUNCTURED EAR DRUMS Patented SafetyLock Eartip Adaptors are non-invasive and leads the industry in user safety