This light switch extender adds about 5" to the bottom of a light switch, with a loop at the end to make it easy for your kid to grab.

They install using the holes in the light switch cover. You'll need a longer screw to install these

I installed this all over my house so my son was able to reach all the light switches.

You'll need a longer screw to install these.

(https://www.amazon.ca/gp/product/B09FJHJF8L/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1)