Per the Manufacturer:

* MAGIC STOP 5' x 7' is a low-profile non-slip rug pad for area rugs that do not need extra cushion over wall-to-wall carpeted floors.

* Area rugs over a carpeted surface can be quite a challenge to keep the area rug in place because carpet is not a solid surface foundation and tends to shift. A great solution to help prevent area rugs from shifting, bunching, and sliding on carpeted floors.

* A specially designed non-woven polyester fiber textile coated on both sides with a water based, non-transferable, pressure sensitive, dry acrylic adhesive that provides a full layer of solid surface area contact across the area rug backing and the carpeted surface to help keep the area rug in place.

* Ready to use out of the package or can be easily trimmed to fit unique sizes and shapes with household scissors. Apply to a clean, dry carpeted floor. Completely unfold to expose adhesive coating. Place adhesive side down in desired location and smooth out any wrinkles. Remove protective film to expose alternate adhesive side and place area rug on top and smooth out any wrinkles.

See more info here:

https://www.amazon.com/gp/product/B01LZMBWKW/