Easily measure adult and child from home, office, or clinic. Very easy to install; comes with placement box to create an outline. Note: this unit only has metric measurements(centimeters) and does not measure in feet/inches. Installation instructions: 1. Place the stadiometer on the floor against the wall. 2. Pull the tape measure up far enough for the zero to line up exactly with the red stripe in the measurement display area. Then mark the site of the drill hole on the wall on the upper part of the attachment hole. 3. Attach of the tape measure to the wall using the screw supplied. 4. Push the stadiometer back together. Measuring with the Stadiometer: 1. The person to be measured stands under the stadiometer. 2. The measuring tongue is lowered onto the head. 3. Height appears in the measurement display area. Material: ABS+Metal Color: Black Range: 0-200cm(Metric Only-Not Feet/Inches) Graduation: 1 mm Quantity: 1 Pc Package Contents: 1 x Stadiometer 2 x Screws Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 299 hours Hope you have a pleasant shopping experience!