NOTE: I have altered the shape slightly such that the "V" is a bit deeper to better fit kayaks with more angled keels. (Compare photos of actual blocks to photos of blocks in info sheet.)
Similar Manufacturer's Page: https://maloneautoracks.com/Kayak-Carrier-with-Tie-Downs-Foam-Block-14-Tote-Packaging.html (Note that page is for 14" long blocks while these are 16".)