Specification: Capacity: 3ml / 0.1oz Size: 15mm x 44mm/0.59'' x 1.73'' Material: Glass Bottle Body+ Glass Roller Ball+ Black Plastic Screw Cap Features: Roller ball makes it easy to apply the oil evenly, no more rollers stuck or fall off. Besides, bottles with roller ball can massage skin, which can accelerate absorption to attain better effect. The compact size oil bottle can be stored in a cosmetic bag or easily placed in your wallet, perfect for everyday use or travel. The clear body makes it easy to see what is inside each vial. Can be used to store essential oils, coconut oils, lip balm, lotion, perfume etc. Package List: 50 x 3ml Glass Roll on Bottles 2 x Plastic Funnels (3.8*4.1cm) 1 x Opener