yofit Multipurpose Cargo Organizer Blocks Car Trunk Storage Organizer Blocks, Available to Wool Trunk's Carpet for Car/Truck/SUV/Van, Set of 4

Nice & cheep solution, very recommended for big trunk cars, best for SUV. Important to have floor carpet mats. Or just carpet coverage on the trunk floor.

My wife's new VW came with some like these & worked well. I wanted some too & ordered these after viewing many others. They came unassembled, to save space. I was worried when I had to assemble them that they might not be sturdy. ButThey were easy to put together, just be sure they are fully seated. You might have to pound them a bit with something, as they connect very tightly. Once assembled though, they are very sturdy and don't come apart. They stick like crazy to the felt-like carpet in the back of my car! I actually had trouble getting them off, after the first time I stuck them to the carpet! You need to pull them with a rotating movement instead of just trying to pull them straight up. Doing that, with how well they grab, will pull the carpet right off if you pull hard enough! Rotating them, will free them without running the carpeting. I have put them on and off many, many times and it doesn't seem to wear on the carpet like I thought it might. They work fantastic! Putting one of these in opposite corners of something will usually keep it secured easily. I have only once used all 4 to keep something heavy from sliding around. I don't know why I didn't get these before, they are the best!

These are great for keeping things stable in your trunk. I've had a different brand before so I was happy to find these again. They are very sticky so long as you have a carpeted area in your trunk. They work great to keep things organized. I don't worry about groceries shifting when using these.

In 2010 I bought a Kia Soul for my daughter and there was a set in it. They were awesome for holding things in place from grocery bags to a case of soda. Recently I came across these. I live on a cliff with a very steep driveway and I drive a new Yukon xl so I can assure you I know about things sliding around in back. I bought these and they work perfect. I can get a bag of groceries the other day. I backed down drive half way and things were right where I put them. To call these a bad product is not fair. They are not made for many of the uses I’ve seen people saying they don’t work for. They are meant to be used to keep things from rolling around, to be mounted on your carpet in back of suv, station wagon, hatchback, sedan or coupe. The hook you are all talking about is the hook as in hook and loop system more commonly called “Velcro”. After trying them for their intended use I got three of the houses around me as well as my own for a total of 10 cars and it worked in every one of them except for a 1998 Toyota my neighbors kid has. What that tells me is there are some vehicles that have different carpets than others. If they don’t work on your carpet it is good that you can return them for free.

The velcro-like bottoms hold on very well to the carpet in my SUV trunk. Use this for holding items that normally slide or roll around.

I bought a set of these for the cargo area of my Buick Enclave. They work GREAT! I'm writing this review to give a heads up. They work on the wool (maybe?) stuff in the cargo area, it's much like the inside of a trunk. The more carpet-like stuff in the passenger area does NOT stick to it. Just so you know. Seller, I'm now looking to carpet the cargo bays in my motorhome so that I can use these gizmos to hold cargo in place. I'm having a hard time figuring out what kind of carpet to search for. Would "trunk carpet liner" be the wool liner you mention in the description? Thanks for your help!