Fluorescent window markers its so simple to use, just remove the cap and press the tip to the surface several times until the tip fills with ink , write and draw as much as you want , then recap tightly after use and store it horizontally. So keep imagining what yopu want on your glass surface and our markers will give wings & colour to your imagination and brings it to reality . its the new must have for stores , office, restaurants, hotels & educational institutes.