# Step 3.6: Edit the Length of the Part

### Summary of the Step

In this Step, we edit the dimensions to which we have related the sketch-loop. The sketch-loop updates as we edit the length of the Part. The sketch-loop becomes 'parametric'.

In this case the length of the Part also 'parametrically' updates the length of the sketch-loop.

#### Change the Length of Part

 STEP 1: Double-click the Part-Outline to open the Part-Editor

Edit the 100.00mm dimension to become70mm

 STEP 2: Double-click the dimension arrow-head

The Edit Dimension dialog-box opens

 STEP 3: Use the spin-box tool to change the length of the Part to 70mm

The sketch-elements change as you edit the dimension.

 STEP 4: Click when the dimension is 70mm.

 STEP 5: Double-Click a sketch-element to close the Part-Editor.