McKesson EKG Tab Electrode Diagnostic Non-Radiolucent is used for in routine EKG testing. Its conductive adhesive hydrogel is a high-quality adhesion wich has low impedance for clear reliable tracings. Features: McKesson Resting ECG Tab Electrodes Large surface area conductive adhesive hydrogel. Silver/Silver Chloride sensor for quality traces. Easy removal, no gel residue or clean up. Biocompatible Defib Recoverable Single Use Disposable DEHP Free Mercury Free Not made with natural rubber latex. Box of 1000