4PCS Car Storage Organizer Trunk Blocks for Boot Felt Carpet,Free Association Car Cargo Organizer Block,Multipurpose Car Organizers and Storage

.Sticks to the carpet in the trunk of my car very tightly. Keeps everything in place as advertised. Price is great.

If you have low pile or anything less fuzzy than a tennis ball, you may want to avoid as it may not stick well for items that are a little heavy. If you’re on the better side of that, these work well.

Bought as a gift for my mom and she LOVES them! Used i. The back of n suv to keep items from sliding around.

These felt really light and somewhat flimsy but I was hoping I was wrong.I wasn't. They couldn't restrain a rather small bag of groceries, unfortunately.

For what it is used for, it is great at organizing things. I used it on a rubber/plastic mat for my trunk and it sticks well. the only reason why im deducting 2 stars is that the tabs break VERY easily. to connect the pieces it goes through two tabs. i was trying to make it long enough to hold an extinguisher so i had to take apart 2 of the pieces and when doing that, it snapped off. fortunately, i was able to make it work for what i needed it for.

They seem to work

The blocks are easy to assemble, sturdy and lightweight. They have velcro on the bottom, so if you have a good carpet pile they should stick to that. If you have a smooth surface, it comes with velcro tape that you can attach to the surface so the blocks will stay in place.I didn't have the right carpet, so mine didn't work very well and easily moved. The adhesive strips do not stick to carpet. You get enough to make 2 angle pieces that you can use to hold something in place however you think of it. I used the side of my trunk and these pieces to hold things in place. But if the item is too heavy, it will still move the blocks.

These work well for me. They stick to the carpeting in my trunk like velcro, but not as tight. I use them to hold down groceries, especially for large beverage packs. I have used them for a month and haven't noticed any issues with the carpet.