This is a unique instrument combining good design, great portability and a low carry weight. It was designed this way from the start and the experience of many years of successful use in the NHS has enabled recent design improvements to be made. It has millimetre graduations and a top measuring range of over 2 metres making it suitable for pre-school through to adult use. It can be used in schools, hospitals, clinics and surgeries. The lightweight plastic design makes it particularly suitable for health surveys and other field work.