Feature: 1. Safe Material: The wooden ruler growth chart is made of walnut wood, ensuring safety and durability without any harm to children's health. 2. Accurate Measurements: The ruler features precise markings, allowing you to accurately record your child's height as they grow, making it a cherished keepsake throughout their childhood. 3. Unique Decoration: The growth chart serves as both a practical tool and a stylish decoration, adding a touch of fun and whimsy to your child's room. 4. Easy Installation: Simply align the measurement board against the wall, marking the bottom at a distance of 70cm / 27.6in from the ground, and attach the 4 wooden boards to the wall according to the markings on the ruler. 5. Versatile Application: The growth chart can be used in children's bedrooms, living rooms, nurseries, daycare centers, and more, making it a versatile and meaningful addition to any space. Specification: Item Type: Wood Height Chart Material: Walnut Wood Height Measurement Range: Approx. 70-180cm / 27.56-70.87in. Package List: 4 x Wood Height Chart1 x Measuring Tape2 x Adhesive Sponge