|Concept:||The difference in height between the lowest and the highest point of the tracks, measured from the yard.|
|Sizes:||Measured in centimeters: 1.5cm–3cm|
|Measure:||The difference in centimeters between the yard and the bottom of the tracks measured at the back of the tracks using a tape measure.|
|Adjust:||Can only be changed by replacing the wedge under the tracks with a higher/lower wedge.|
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