Philips Sonicare toothbrush head identifier

This snap-on clip works with standard Philips Sonicare toothbrush heads. You do not need to remove it to brush, the gap between the toothbrush head and the main part was just enough to squeeze this in. Color code them to distinguish between similar-looking toothbrush heads. All of this and it still works with my Philips Sonicare toothbrush holder.