5ml Blue Glass Roller Bottles with Metal Balls and Silver Caps by Perfume Studio® Use for Essential Oils and Aromatherapy (3, Cobalt with Metal Ball)
Perfume Studio 5 ml Cobalt Glass Roll On Bottles for Aromatherapy Essential Oils and Pure Perfumes. The small Roller bottles are of top quality and made to last. Practical Size and small enough to easily fit in your pocket and purse; great for travel.
NOTE: Don't use Metal Ball Rollers with heavy dilutions of fractionated coconut oils - Metal balls become very slick and will pop out or leak!