Window clings are a great marketing tool to stick on your windows or glass doors at your store. These window clings are designed to stick to read on both sides if you want a double-sided option or single-sided options are also available. Use your windows to tell a message, announce a sale, new inventory notification, the possibilities are endless. Expand from just windows! This material can stick to walls or any other smooth surface and can be removed with no residue or without peeling up paint.