I bought this and took the pieces out of the bag.  I decided to go another roof rack route and I am selling this.  Straps and belts still in bag new, I did take out the blocks, but they were not used.


 Capacity: (1) Kayak
» Dimensions: 14.75” L x 4.0” W x 3.75” H each block
» Designed for all vehicles, WITH or WITHOUT a roof rack
» Foam Blocks strap to rack or roof so they don’t shift during transport
» Kayaks strap to Foam Blocks for increased stability
» With a roof rack: Foam Blocks fit aero, square, and round cross bars
» Without a roof rack: cross bar cutouts remain in Foam Blocks for extra support
» Includes: (2) foam blocks, (2) dual lock straps, (4) car clips, (2) kayak end straps, mesh carry bag and set up guide.