You may request to change the length of the cables for either the start switch cable and for each lane's finish sensor cable. The standard lengths are: 40 feet for the start switch and 10 feet for each lane's stop sensor. You need to order 1 $4.00 charge for each cable you wish to have modified. After entering the quantity needed changing, you must enter the exact length you need for each cable in the comments section of this item--to the right on this page. Note: the length of the Computer Interface Cable can NOT be changed. If you require a different length for this cable, you should try to order it from your local computer store.