Works with Q Towers to spread crossbars farther apart on cars with short rooflines or limited attachment points. Produced: 1993 to 2004 History: New black base pad material introduced in Apr. 2011 for added longevity. General Information: Weight: 10 lbs. Dimensions: Up to 37-1/2" (36" bar spread) Capacity: Varies by car. See Fit List.