These unique rulers allow you to chart your children's growth over time, and take those memories with you if you move. Each ruler is made from sustainably grown poplar, and features hand-routered tick marks and numbers. Rulers are 6 feet tall, but designed to be mounted 6 inches above the floor to clear standard base molding. This allows the ruler to chart growth up to 6' 6". Each ruler is finished with natural Danish oil, which creates and attractive petina, but still allows for easy writing on the wood with pen or pencil. Contact us about custom colors for the numbers and tick marks.