Package included: 2 pcs x 50 ml roller bottle with plastic roller ball and black cap. Comes with 1 pcs opener for easy filling and cleaning. Ideal for on-the-go use, these glass roller bottles offer a convenient way to apply your essential oil Bottle Size: Capacity: 50 ml/1.7 Oz; The compact size of 37 mm*116 mm/ 1.46 in*4.55 in (with cap) makes it ideal for travel and daily use.These refillable roller ball bottles offer convenience and versatility for your needs Leak-Proof Design: This roller ball applicator is designed with a plastic rollerball that seals well and is not easy to leak or spill. And the rollerball applies smoothly and easily, making it perfect for travelling Multi-Purpose Applications: Enjoy versatile usage with these refillable roller ball bottles,can be used for essential oils, deodorant, perfume, and more Easy to Use and Clean: The wide mouth design allows for convenient cleaning and refilling. With the included 1pcs opener, refilling your rollerball bottle is a breeze. Simply open the container, refill with your preferred oils or perfume Package Included: 2Pcs 50ml Glass Empty Roller Bottles with Plastic Roller Ball