Permanently mounted canoe roof racks are great if you always plan to use the same vehicle to portage your canoe. But if flexibility is on your ''must have in a canoe carrier'' checklist, the Foam Block Canoe Carrier may be the canoe carrying system for you. The four foam blocks fit snugly over your canoe's gunwale and won't scratch the roof of your vehicle. The foam block's non-skid bottoms hug your roof top, while the nylon strap secures the canoe to the top of your car. Use the four S-hooks and two 15' ropes to secure the canoe's bow and stern to your vehicle's frame or bumpers. Made in USA.