Discover the mighty 5-in-1 Outdoor Measure-Mate™! Learn, explore and experiment with measurements in a new and exciting way. Features up to five different tools, including ?Vertical measure – to measure freestanding objects, Callipers – to measure internal and external dimensions of an object , Trundle wheel – to measure distances (1 click = 1 metre), Spirit level – to discover whether a surface is level (horizontal) or plumb (vertical) and a Measuring stick – to be used as a ruler. Set includes an activity guide featuring fun ways children can use the Measure-Mate™.