The ADC Proscope 665 Disposable Stethoscope is a nurse-style, diaphragm-only, single-patient use scope. Warranty: 1 Year - Defects in Materials and Workmanship under normal use and service. Features ADC Proscope 665 Disposable Stethoscope Features ABS construction throughout is super lightweight. May be ETO sterilized and safely incinerated. Ultra-sensitive diaphragm for outstanding acoustic performance. Individually packaged in a sealed polybag. Lightweight for comfort, yet is remarkably durable. 10 units per shelf carton / 5 cartons (50 scopes) per case. Made without phthalates or natural rubber latex. Made in China. Specifications ADC Proscope 665 Disposable Stethoscope Specifications Chestpiece Type: Diaphragm Only. Chestpiece Material: ABS. Chestpiece Weight: 0.16 oz (4.5 g). Diaphragm Diameter: 1.75" (4.45 cm). Diaphragm Material: PVC. Diaphragm Type: Standard. Headset Type: Disposable. Headset Material: ABS. Tubing Length: 21" (53 cm). Total Length: 32" (81.25 cm). Total Weight: 1.5 oz (42.5 g). Configurations ADC Proscope 665 Disposable Stethoscope Configurations #665RB-10: Royal Blue (10 per Box). #665Y-10: Yellow (10 per Box). #665RB: Royal Blue (50 per Case). #665Y: Yellow (50 per Case). Literature ADC Proscope 665 Disposable Stethoscope Literature ADC 2017 Product Catalog