For larger repairs, a drywall saw, screws, repair clips, mesh drywall tape ... They could be called an adhesive drywall patch, an adhesive patch kit, or even a self-adhesive mesh patch, so ...

Towel rails require not one, but two drill holes, and could even need sizable drywall anchors to keep it in place. Instead, the IKEA SKOGHALL Towel Rail uses self-adhesive tape on the back.