Feature:1. Children (infants) head circumference measuring tape, PP plastic material is not easy to deformation, the thickness is suitable, is in line with bioengineering circumference measuring tape.2. The tape measure has a hole on the head, which is convenient to suspend when not in use, and it is convenient to hold the position when measuring. The large and clear sign makes the reading more accurate and easy to read.3. The use of environmentally friendly materials, does not contain chemicals that are harmful to the body, is safe to use, can be washed and easily wiped and reused.4. Quickly and easily measure the baby's head circumference, so as to observe the child's growth at any time, with a wide range of applications and suitable for pediatric use.5. The perfect head measurement tape for babies, infants and children. It can also be used to measure the circumference of various cylindrical objects, such as water cups, milk bottles, etc.Specification:Item Type: Arm RulerMaterial: PPLong: Approx. 26.5cm / 10.4inWide: Approx. 13mm / 0.5inScale: Cm on One SideScope of Application: MUAC arm ruler, for measuring children's armsMid-upper-arm circumference (MUAC), as one of the indicators reflecting the nutritional status of children, has been used in many studies. The internationally recommended upper arm margin for the reference population of 1 to 5 years old is: 12 Package List:1 x Arm RulerNote:Please allow 0‑1mm / 0‑0.04in error due to manual measurement. Thanks for your understanding.