The award winning Teacher's Pet is the #1 Whiteboard Eraser on the Planet! Made from a proprietary microfiber blend, Teacher's Pet removes shadowing, greying, and months of dry erase marker build-up from your whiteboards with NO SPRAYS or chemicals. Teacher's Pet was developed by a classroom teacher and polymer chemist for the specific purpose of cleaning dry erase/whiteboards after 15 years of frustration with cheap and useless current products. When Teacher's Pet gets dirty there's no need to toss it out with those other cheap erasers (that have never and will never work) and clutter our already overflowing landfills. Simply toss it in your washing machine with a load of laundry and then into your dryer and it's as good as new! Do you need something to grab your students' attention? Teacher's Pet doubles as a great student engagement tool, as well. Slip it on your hand and you are now your school's puppet master! Use it to clean your keyboard, your eyeglasses, your monitor, Smart boards, Active boards, and Promethean boards. You can even use it to clean an old, dusty chalkboard! Did you just spill that morning cup of coffee or that Diet Coke at lunch? Not a problem. Teacher's Pet has got you covered! Gone are the days of using that stinky whiteboard spray, Windex, hand sanitizer, alcohol wipes and WD-40 to try to clean your dry erase/whiteboard.Teacher's Pet is the last--and definitely the most fun--whiteboard eraser you'll ever want or need! Recipient of the prestigious Teacher's Choice Award! (All microfiber is NOT the same. Ours is a scientifically designed blend of polymers that when used together in the correct proportions creates a classroom/office tool that keeps dry erase/whiteboards sparkling for their lifetime. If your Teacher's Pet ALONE does not clean your whiteboard it is an indication that your board has been damaged and ruined from chemical and/or physical products that have been used in an attempt to clean it.)