It’s Essential! Essential Oil Blends for all your needs. The set of essential oils includes one 10ml roller ball bottle and one 5ml roller ball bottle than can attach to your keychain, purse or bag so you have it on you at all times. Bottles are in a variety of colors and scents and contain colorful crystals. These lifetime custom elixirs are vegan, sustainable, cruelty free and 100% pure therapy grade.