As babies are unable to stand up on his own, the height measuring rod need to perform with baby lying down on his or her back. Track your child's growth at home with easy to assemble and simple to use HM80P. HM80P portable height rod is easy to carry because of its lightweight and detachable parts. Product Description Measuring range 10~80cm Division 1mm Manual type Product Specifications Measuring range 10~80 cm Graduation 1 mm Dimensions 330x890x100 mm Weight 0.7 kg Power supply - Features Plastic baby height rod for use on the table