To remove non-conductive skin cells and sensitize skin for optimal contact during recording, this 2.5cm x 5cm abrasive pad can be rubbed lightly across the skin before applying an electrode. Each ELPAD package contains 10 abrasive pads. ELPAD Electrode Site Preparation Pad ELPAD$10.00 Same Day Shipping - orders with UPS Red or Blue shipping will be shipped the same day if received by 3 p.m. PT (Monday-Friday).