A durable Trundle Wheel with a rubber tyre to maintain accuracy. The pointer on the wheel helps children to measure intermediate distances. An adjustable clicker can be set from 'off' to every 10cm and to every metre. Also available with the Trundle Wheel Counter; a great addition to the Trundle Wheel and accurately counts to 9999 metres, or it can be set to register every 10cm to a maximum of 999.9 metres. Designed to fit in place of the standard clicker.