I have been in the automotive parts manufacturing and assembly business for over 27 years. In that time I have come across many “gimmicks” that claim this and that. I’m here to tell you that Trunk Block is the real deal. I use mine all the time and they have never let me down yet. I have used them to hold washer fluid containers, bowling balls, groceries, etc. In my career as a Quality Manager for an automotive parts supplier I sometimes have to transport large, awkward, heavy parts in my trunk. I used to always look for different ways to secure them so they didn’t roll around the trunk. Not only is that damaging to the car it is damaging to the parts as well. And when I am dropping off hot sample parts to customer they better not be damaged. Trunk Block has kept the parts from moving around every time. I would be lost without Trunk Block.