This rainbow essential oil diffuser allows you to bring rainbow happiness and function together. Diffuse your favorite essential oils and clip the rainbow to your keys, purse, diaper bag or backpack! This listing is for a variety of (5) colors. If you would like specific colors or vibes (ie. only neutral, bright, color matching, etc please message. Each is made with 100% cotton rope, 100% cotton yarn, and natural wooden beads. Measurements: Approx: 5 x 3" How to use: Drop several essential oils onto the wooden beads. Reapply as little or as often as you like. You do not need to use this rainbow as a diffuser to enjoy it! Simply hang and enjoy. The diffusing is simply a bonus!