Trundle Wheel with Counter it's easy and fun to measure long distances! Count 'clicker' clicks with each metre to see and hear the measurement. Easy-grip handle adjusts for various student and teacher heights. Non-slip rubber tyre for accurate reading. Counter reads up to 99999m. Reasons to Love Ideal for measuring perimeter - why not use it to estimate and then measure the perimeter of the school playground/playing field. The easy grip handle can be adjusted to meet varying heights of children and the count clicker provides accurate measurements of length that children won't forget due to its large display. The wheel clicks after measuring each metre and demonstrates to children that not all measurements of length are conducted using a ruler, instead this resource measures through the use of a dial. NB: Ensure the axle nut is tight.
