They are practical for electrocardiogram drafting, nice supplies for school and hospital
Quality material: the EKG calipers measuring tool is made of material, which is reliable and strong, not easy to rust or deform, and can serve you for a long time
Ruler design: EKG caliper has a scale design on the protective cover, which can be applied as a ruler, and the measurement range is 0 - 2.4 inch; It is perfect for measuring electrocardiogram waveform
Easy to use: end points of electrocardiogram drafting divider are adjustable to the desired length to meet various needs, providing you with a good experience
Portable design: EKG calipers with ruler is about 7.05 x 1.57 inch, lightweight and compact, can fit pockets and pencil cases well, easy to carry and use anytime, anywhere

colour:Red+blue
Material:Copper + plastic

Package Contents:
1 set x ecg