The collection includes all four essential oil blends: calming (lavender), awakening (bergamot), refreshing (rosemary) and invigorating (eucalyptus & peppermint).  You can roll just one or combine them for a custom blend for your day.  Roller balls are a convenient way to quickly apply essential oil blends without the mess.  There is no need to dilute before applying directly to your skin.  Apply to wrists, temples or to the bottom of feet for the best effect.  The 10ml glass bottle will easily fit in your bag to use anytime/anywhere.  The collection includes our signature purple gift box.