High quality mini cell foam blocks provide simple and effective way to carry kayaks on most roof-rack configurations, including naked roofs. Foam blocks provide a safe surface for your vehicle and Kayaks. Use the these blocks to make your own system or as replacement block for any kayak roof top carrier kit.
4" W x 4" H x 16" or 22" in Length
Width opening for cross bars; 2.5" - If you need one to fit a wider bar we also offer the XSUV Block