The self-locking height ruler is an essential tool for parents who want to keep track of their child's growth. Its retractable design makes it easy to use and store, while the clear markings ensure precise measurements. This height measuring device for use in bedrooms, nurseries, or playrooms, helping parents monitor their child's development effortlessly. Features -Color:Black -Material:ABS/PVC -Size:14.80X11.40X3.40cm/5.82X4.48X1.34in -Versatile measurement: the retractable height ruler can to 2 meters, making it suitable for children of different ages and heights, addressing the traditional height rulers -Design: the feature allows children to measure their height on their own, promoting reducing the need for assistance -Precision tracking: ensures accurate height measurements, enabling parents to keep track of their child's growth and make necessary adjustments to their nutrition and physical activities -Convenient portability: its lightweight and portable design make it easy to use in various environments such as homes, schools, and medical facilities, overcoming the bulkiness of conventional height rulers - use: from abs/pvc materials, this height ruler is built to last, providing reliable performance over time Package list: 3 x Height Measuring Tape