Product Specifications: Application: ECG Snap Electrode Backing Material: Foam Backing Connection Type: Snap Connector Dimensions: 1-1/2 X 2-1/4 Inch Number Per Pack: 25 per Pack Securing Method: Gel Adhesive Shape: Rectangle Storage Requirements: USP Controlled Room Temperature Type: Monitoring UNSPSC Code: 42181708 User Adult X-Ray Compatibility: Non-Radiolucent Features: Off center design Ideal for use as PSG body electrodes Highly conductive wet gel Comfortable Foam Backing backing Unique offset concept High quality Ag / AgCl sensor