Lightweight anodized aluminum chestpiece with color coordinated 22" PVC tubing. Chrome-plated brass binaurals adjusts easily for comfort. Chrome-plated external spring with white plastic eartips. The series product including:Pediatric type Single head Stethoscopes, Dual-head Stethoscope, Pediatric type Dual-head Stethoscopes, Dual-head Stethoscopes, Fetal type Dual-head Stethoscope, Sprague Rappaport type Stethoscopes, Deluxe Dual-head Stethoscope, Disposable Stethoscopes etc.