I bought two of these and Staples shipped them without wrapping so the packaging tape stuck to the plastic. Worse they used a LOT of packaging tape. Leaving canola oil on all night enabled me to get some of the tape residue off but not nearly all. They are still sticky and collect dirt. (Note many solvents that would dissolve the glue residue would also dissolve the plastic).
This mat may be good for hardwood/engineered floors but on tile with 5/8 inch grout spacings between tile (and not level with tile) mat is only partially useful. Chair wheels get stuck in tile spacings. Should have gotten hard laminated mat.