The sturdy 1m Ramp™ was designed by primary teachers for safe and accurate investigations into the relationships between slope or mass and distance or speed. It features a gradient adjuster that can be altered for different angles, an open-backed truck for different masses and 4 sets of different sized wheels - 25, 35, 50 and 62mm diameter. Great for the exploration of forces, prediction and planning, accurate measuring and timing, the collection and manipulation of data, and the identification and explanation of trends. Ramp Dimensions:. Width - 231mm. Height - 520mm. Width of the base - 231mm Length of the ramp -1000mm