Window film that breaks daylight into bands of color across the room

These prismatic decals sit on the inside of a window and split the light coming through it. The pattern moves as the sun does, so the room looks different at nine in the morning than at four in the afternoon. Cloud cover changes it again.

Why choose this window film?

There is no glue involved. The film holds by static cling, which means you can lift a piece off, reposition it and press it back on a different pane. Cut-to-size rolls are there if the preset shapes do not fit your window.

• Clings without glue: static cling holds the film to clean glass and leaves nothing behind when you take it off.
• Shapes or cuttable rolls: rounds, butterflies, clouds, moons and cats come in fixed sets; the roll versions you trim yourself.
• A pattern that keeps moving: the refracted bands shift with the angle of the sun and the weather outside.
• Works on any smooth glass: windows, shower screens and glass doors all hold the film.
• Visible marker for birds: the pattern gives birds something to see so they are less likely to fly into the pane.

Move a piece between rooms whenever the light changes with the season.

Pick a window that gets direct sun for part of the day, clean the glass and press the film flat from the middle out. East-facing glass gives you color at breakfast; a west window pushes it across the room in the evening. A bathroom window works well too, since the pattern reads clearly against tile.

Specifications

• Material: PVC film
• Type: static cling window film, no adhesive
• Finish: prismatic, refracts daylight into color
• Application: smooth glass, repositionable

Put a piece on the glass and let the sun handle the rest.