What lengths of Rollercam® cam buckle straps are available in Expedition or the Classic models?

Both the Expedition and Classic version of the Rollercam® tie down straps come in 1′,2′,3′,4′,6′,9′,12’15 and 20′.  The sewn in loop version of the Rollercam® strap come in 4′,6′ and 9′.