Features_x000D_Electrocardiogram/EKG Rhythms Pocket Card: Horizontal and Vertical Option, Nursing, Badge Pocket Card. Packed with essential rhythms, this double-sided card offers unparalleled convenience_x000D_Materials: The ekg badge card crafted from waterproof plastic and boasting the thickness of just half a credit card, it's light enough to effortlessly attach to your badge reel_x000D_These double sided EKG rhythms interpretation cards can support learning rhythms but also serve as a quick reference guide in a demanding work situation_x000D_Versatile Design: The EKG badge card set includes both horizontal and vertical features to suit your preference. Content is descriptive, simplified, and neatly designed for quick reference_x000D_Thoughtful Present: EKG Caliper Measuring Tool for Nursing; These cards mean that learning pace will be easier and you can better cope with question_x000D_Notice:_x000D_1.Actual color may be slightly different from the image due to different light effect_x000D_2.Please allow 1-3cm deviation due to manual measurement_x000D_Description:_x000D_Size: 9.8x5.8cm_x000D_Weight: 10-20g_x000D__x000D_Package List:_x000D_1x Electrocardiogram/EKG Rhythms Pocket Card_x000D__x000D_