Review on Secure Your Kayak With WOOWAVE Deluxe Universal Soft Foam Block Kit For Car Roof Racks by Jacob Ashman

I was stuck in traffic on 295 North in Maryland driving 30-35 miles per hour with my kayak very securely tied down to the roof of my car, but the blocks themselves warped and gave out from the weight of the kayak, causing the kayak to fall off my car on to the side of the highwayFortunately this was a slow stretch of highway and there was traffic so nobody was driving fast behind me, so I was able to secure my kayak again securely but only using the rope to hold the kayak in placeI would not recommend this product.You're better off putting your kayak directly on top of the roof of your vehicle and taking your chances without this product.