I picked up the blocks because I finally purchased a composite kayak and wanted to upgrade from the strofoam blocks I had been using. The new blocks fit snuggly on my mini-van rack cross bars. My kayak nested snug and secure in the contoured blocks. I have used them six times over several hundred miles at speeds up to 70 MPH with some gusting winds. The blocks were an excellent base for the kayak to rest on.
I may place the blocks directly on my roof next time to reduce the height by about 3 inches becasue my usual paddling partner is only 5'1".
I may bore a hole through the blocks to affix a tether so I lock them on the roof.
Reviewed by: Robert Orlando from New York, NY.
on 10/17/2012