Review on 2021 Oversize Rug Gripper Set - 12pcs Non Slip Reusable Washable Rug Grippers for Area Rugs, Hardwood Floors, and Carpets - Keep Your Rug in Place, Make Corners Flat, Easy to Peel Off - White, Set of 12 by Robert Olguin

These carpet grippers are basically soft rubber material, smooth on both sides, and both sides are sticky. So you peel off one side of the backing and stick it to the floor or maybe a rubber mat and stick the other side to the bottom of the mat. Although they are quite sticky, the problem is that dirt and dust get in there and they lose their grip over time. Presumably they can be washed and reused. They are large and therefore have a large surface area, are easy to use, work well and do not damage the floor. If you find they come off too easily, you can try Nanotape, which is stickier, softer, rubberier, doesn't damage floors, and is definitely washable and reusable.