This Whisper Roller slides into your roll of toilet paper and takes up the space between the spindle and the toilet paper tube itself making it very quiet when the roll is used. This is great if your toilet paper holder is mounted on a shared interior wall and you don't like hearing the giggle of the loose roll resonate through the wall when someone is using the toilet paper. It is a snug fit onto the spindle (as designed) and does not require removal in order to change the roll of toilet paper. Simply remove the empty toilet paper tube then slide it into a new roll! Once again, the spring loaded spindle can stay inside this Whisper Roller for good once it is initially installed. Tested and works great!!