The caliper ruler is an essential tool for medical students and professionals alike. Its great construction longevity, while the precision markings facilitate accurate measurements. great for use in heart clinics, it assists in the detailed analysis of heart rate and rhythm, making it a valuable addition to any medical toolkit. Features -Color:Purple -Material:Iron, plastic -Size:11.50X2.00X1.50cm/4.52X0.79X0.59in -Professional design: tailored for cardiology professionals, this instrument supports accurate analysis, improving reliability and patient care -Effortless drafting: includes special tools for seamless electrocardiogram drawing, suitable for both teaching environments and clinical use -Enhanced efficiency: clear, precise scales allow for faster measurements and annotations, streamlining workflow in busy medical settings - precision: built with great materials, this tool consistent accuracy even with prolonged use, saving costs on replacements -education utility: ideal for medical students and educators, this tool helps in understanding and teaching interpretation techniques Package list: 5 x Caliper with sleeve