Save birds from window collisions with these fabulous Rainbow Trout Window Gems. They are rainbow trout and they make rainbows. he he he. They are adapted from drawings of actual trout so they are quite lovely swimming across a window. This design comes in a package of 7 clings, ranging in size from 5.5" long for the smallest fish to 7.5" x 8.5" for the largest leaping fish. Window Gems break up reflections on the glass and warn birds away in time to avoid window strikes. The decals stick to the window purely with static cling, not adhesives, so they are movable, reusable and never fade. Window Gems are made with a prismatic vinyl which captures sunlight and turns it into rainbows all over your house. They are stunning, constantly changing, and perhaps a teeny bit magical. Any light source makes the gems glow with rainbows, even moonlight. Handmade in Mount Shasta, California