Made of thick lead-free glass, safe for liquor, essential oil and other liquid storage. The clear version allows full visibility of contents, while frosted finish delivers premium texture. Compact flat square design saves space, easy to carry in pockets or bags. Matched with threaded aluminum cap, tight twist seal prevents liquid volatilization and leakage. Blank smooth glass supports custom silk-screen brand logos, perfect for gift sets and liquor samples. Thickened flat base keeps the bottle stable, easy to clean and reusable, widely used for spirits, fruit wine, perfume and essential oil packaging.