24 clear, glass, mini roll-on bottles with black caps.nPerfect for essential oils, perfume oils, or other liquids.nSafe, secure and convenient packaging.nPerfect for travel, and conveniently fits in your purse.n3 Droppers included.nThese high quality, clear, glass, mini roll-on bottles are perfect for use with essential oils, perfume oils, and other liquids. Snap in the roller-ball by gently placing the roller-ball in the bottle and then firmly tighten the cap until the roller-ball snaps in. Use the roll-on bottle to apply the perfect amount of product each time. Remove the roller-ball by applying pressure with the cap.