1/3 oz. Clear Glass Roll-on Vials with Black Caps (Pack of 6)

Color-code your custom roll-on blends. Great value for singles or sets. Plastic fitment for most oils. Standard size for DIY recipes. Details Clear glass roll-on vials are perfect for applying essential oils, blends, and massage oils directly to the skin—simply roll them on as needed! (Roll-on fitments work best when the essential oils are diluted with at least an equal amount of carrier oil.) Contents: 6 clear glass vials with plastic roller ball inserts and 6 caps (1 each—black, copper, gold, purple, silver, white). Neck: 16mm. Dimensions: 3¼" tall x ¾" diameter. Volume: 1/3 oz. (10 ml). Container Size Comparison Chart Video: "Why do my roller balls fall out or fail to roll?" --> The Art of Roller Bottle Blending Essential Oil Dilution Roll-On Perfume or Cologne Healthy Nails Serum Night-Time Moisturizing Roll-On Skin Clarity Roll-On EO Blends for Men and Women Instructions Transfer oil from another vial or mix a bl