1 ml Clear Glass Vials with Metal Roll-ons and Black Caps (Pack of 12)

An economical way to share diluted samples of single oils, blends, and your own mixtures. Ideal size to introduce oils. Durable metal rollers for smooth flow. Best with 1:1 ratio of essential and carrier oils. Handy for travel too. Details Glass sample vials are a handy way to share and apply essential oils, blends, and massage oils—simply roll on the skin as needed! The vials come with durable metal roller balls and smooth black caps. (Roll-on fitments work best if the essential oils are diluted with at least an equal amount of carrier oil.) Contents: 12 clear glass vials with metal roller ball inserts and black caps. Volume: 1 ml (~¼ dram). Neck: 10–425. Dimensions: 1 3/8" tall x ½" diameter. 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 Wome