All suncatchers are stung using double wire for strength and durability.  They come with a large top ring for easy hanging and are made with beads, crystals and charms that can go outside or inside.  They  add an element of fun and whimsey to your home or your garden.  Hang from an inside window or outside from your porch, patio, a tree or other location to catch the sunlight.  Add multiple strands to achieve a rainbow effect.