Place this whale suncatcher on any window that receives bright light and watch as rainbows pour in! These suncatchers measure approximately 5.5" x 5.5" (measurements may vary by design) and are packaged on a 5" x 7" backing card, then placed into a resealable cello bag. Made from prismatic window cling material, these suncatchers are completely window-safe - removing easily without leaving behind any sticky residue. This makes them perfect for any window, including those in rentals or dorms. To apply: Simply remove the plastic sheet from the back of the suncatcher, spray water onto a clean window, and place the suncatcher while the window is still wet. To ensure proper adhesion, press the cling firmly onto the glass using a paper towel. Application instructions are provided on the back of each package.