This is a cover for single switches, designed to fit standard-sized switch covers. It increases the pressing area, making it easier to push the switch. Installation is simple: just attach it with the included double-sided tape, and you can use it right away. It can also be removed, so it's suitable for rentals. (Replacing switches with larger ones, such as those from Panasonic, requires a licensed electrician, but this allows you to easily update your switches.) Quantity: 4 sets Color: White Compatible Size (Original Switch Cover): Approximately 120mm (H) x 70mm (W) Enlarged Cover Size: Approximately 127mm (H) x 83mm (W)