These vials can be used for anything you can think of including, but not limited to: Transferring small amounts for carrying around during daily use. Giving out small samples of essential oils. Giving out samples of any other liquid such as liquid vitamins. Anything that you might need a small vial for... use your imagination. Mini-sized bottles. Perfect for travel,picnic, and conveniently to take. Safe, secure and convenient packaging. Description Material: glass bottle, plastics lid Capacity: 1ml, 2ml, 3ml, 5ml ，10ml Color: Clear Thickness: 1mm Package include: 10 bottles or 50 bottles with inner and caps (quantity optional)