This item erases the chalk used in marking the Bible and Science and Health with Key to the Scriptures in order to read and study the Christian Science Quarterly Bible Lesson. The premium and durable eraser with two gray microfiber pads and a black handle keeps hands free of chalk residue for clean, mess-free erasing. The pads attach with a velcro backing and can be removed and washed, so one pad can be in use while the other is being cleaned.