This caliper is an indispensable tool for anyone involved in cardiac care. Its precision-engineered design accurate measurement of heart rhythms, making it ideal for use in both education and clinical settings. The tool's ergonomic design comfort during use, while its clear markings enhance measurement accuracy. Features -Color:Purple -Material:Iron, plastic -Size:11.50X2.00X1.50cm/4.52X0.79X0.59in -Precision engineering: designed for electrophysiology tasks, this tool accurate measurements for heart rhythm analysis and interpretation -Clear and convenient: features well-defined scales for quick and easy measurements, reducing time spent on manual calculations -Multi-functional design: combines calipers, rulers, and dividers to support a wide range of cardiology and clinical drafting needs -great material quality: made from iron, plastic materials, this tool makes longterm reliability and precision -Ideal for training: great for schools and workshops, this tool helps students and professionals master measurement techniques Package list: 1 x Caliper with sleeve