The Rapid Cardiac Analysis Tool (R-CAT) EKG Window gives medical personnel the confidence to accurately and rapidly interpret both EKG rhythm strips and 12 lead EKGs. It is the ultimate reference / educational tool that replaces outdated calipers, paper and pencils. Includes all the features of the EKG Badge plus detailed features such as: Illustrated color Cardiac diagrams illustrating the Coronary circulation in relation to 12 lead EKG changesCan be easily hole-punched and attached with a lanyard to any Crash Cart, EKG machine or Med bag.Durable pocket 3.25" x 6.75" can fit in most pockets and can be easily cleaned with any type of disinfectantCan be marked and erased with a dry erase marker for staff and patient education Can be used in the clinical, education setting or in the field