These small but mighty circle window clings can be used alone or as infill between another design when you want to protect a larger window area from bird strikes. We both use them a lot in our own houses, as we have quite a few large windows. The go beautifully with all our designs.  The most popular combination seems to be with the "Rings" Comes in a package of 15.  They range in size from 2.25" down to 1" across.  They are really little, but that is the point.  They do their job protecting birds, don't block your view, and throw some lovely rainbows in sunlight. The "Dots" design can be used alone or as infill between another design when you want to protect a larger window area from bird strikes.  They go beautifully with all our designs. My favorite combinations are with birds, butterflies, and hummingbirds. If you have bird feeders close to windows and are having difficulty with bird/window collisions, you could use these as an economical way to warn the birds away.