The window cling for strikes is static cling without any sticky and chemical glues, super easy to install on flat, clean, and smooth glass surfaces, and can be easily removed and reused multiple times, an optimal option for home applications. Features - ColorAssorted Color -Material:PET - Size: 15.00X15.00X0.10cm/5.89X5.89X0.04in - won’t see glass, these decals can help notice the glass, stop from hitting windows & sliding doors. -These prism-design decals can not only be used as a reminder, but also act as a great home and office decor. -These window clings can reflect sunlight and create beautiful rainbow to your room. -These decals are static clings. Just peel off the transparent backing paper, some water on glass surface, and stick the smooth side of the clings to glass. -You can remove them if you need to wash your window, and reinstall them after washing. These clings can be cleaned with water too. Package list: 6 x sheets of sticker