Package content: the package concludes 2 pieces of EKG calipers in pink color, allowing you to alternate to use, and each of them is equipped with a plastic sleeves, which can protect you from being accidentally pricked, and can also avoid poking your pocketSafe and reliable materials: these ECG dividers are made of quality Metal, sturdy and reliable, not easy to bend or deform, lightweight and compact, convenient to carry and store, which can serve you for a long timeMeasuring cover: each ECG caliper measuring tool is provided with a plastic cover printed with scale that can measure up to 6 seconds, which can allow you to measure the necessary results correctly, bringing convenience to your using experienceProper design: the screw mounting design can prevent accidental movement of the caliper legs, it can also help to adjust the tautness of the EKG caliper, which can make it longer or shorter; In addition, the smooth circular dents in the middle of the EKG caliper can make it easy to hold,open, adjust, and closeWide application: these ECG caliper measuring tools are very suitable for nurses, students, and people in the healthcare fieldColour:pinkMaterial:MetalPackage Contents:2 x ecgOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.