Features Designed for track mounting systems including the RAM® Tough-Track; includes 1" B size rubber ball Features a rubber friction washer and a stainless steel T-bolt; simply insert into your track and twist the ball clockwise to tighten Made of high-strength composites for durability and reliability in the most demanding environments Backed by a lifetime warranty    .    The RAM® Track Ballconsists of a B size 1" rubber ball molded to a high-strength composite base, a rubber friction washer, and a stainless steel T-bolt for sliding into virtually any track system. Simply insert or slide the RAM® Track Ballinto your track and twist the ball clockwise to tighten in place. Twist counterclockwise to loosen or adjust the ball.Hardware Included(1) Friction Washer(1) 1/4"-20 x 7/8" T-BoltT-Bolt Dimensions.48" x .95"Ball/Socket SizeB Size (1")Weight Capacity2 lbsMaterialsHigh strength compositeStainless steelPackaging TypePoly BagWeight0.1 lbs.