Seca 216 Mechanical measuring rod for children and adults. The seca 216 has a variable scale with a range of 1.4 to 90 inch that is inserted into a 55.3 inch frame. The plastic frame is simply mounted on the wall at the desired height. As the user can choose the range shown in the frame, the seca 216 is suitable for measuring children or adults. The results are clearly displayed in a window on the side of the rod and held in place by the locking screw on the head piece. Suitable for international use, the scale is printed in centimeters on one side of the tape and centimeters and inches on the other.