Features: McKesson All-Purpose Foam Electrodes This product has only been tested for use on humans Full surface adhesion, supported full cover backing. Silver/Silver Chloride sensor for quality traces Easy removal, no gel residue or clean up. Biocompatible Defib Recoverable Conductive adhesive hydrogel Single Use Disposable DEHP Free 10/CD 5CD/PK Product Specifications: Country of Origin: China Application: ECG Snap Electrode Backing Material: Foam Backing Connection Type: Snap Connector Dimensions: 1-3/8 Inch Material: Silver/Silver Chloride (Ag / AgCl) Number per Pack: 50 per Pack Securing Method: Adhesive Shape: Teardrop Type: Monitoring UNSPSC Code: 42181708 Usage: Disposable User: Adult X-Ray Compatibility: Non-Radiolucent Latex Free Indicator: Not Made with Natural Rubber Latex Shelf Life: 450-730 days