**Feature** Enter your model number to make sure this fits. They are great for traveling Simple to refill in seconds Capacity:5ML/pcs Pack of 8pcs metal roller balls 8PCS MINI Brown Bottle ROLL ON GLASS BOTTLES LOT ESSENTIAL OIL Steel Metal Roller Ball New Roll on bottles can help you harness the POWER of essential oils， making application simple. Metal roller balls glide smoothly on! Just fill the roll on bottle half full with you favorite carrier oil， then fill the rest with the essential oil or oil blend of your choice. Get the most out of your essential oils today. Bottles are also great for perfume & fragrance creations. ??Simple to refill in seconds ??A travel essential for both men and women. Size: high 6.7cm， wide 2.1cm Capacity:6ML/pcs Net Weight: 28g/pcs Material: Glass+metal roller balls Package Include�?8PCS Mini Brown Glass Roll On Bottles size 5 ml ， Amber glass bottle with black cap & metal roller balls