REUSABLE: These bottles are manufactured to be reusable, and one set can be used multiple times. LOCKABLE PUMP: The pump head can be rotated and locked for easy transportation or storage. BEST CHOICE: These travel bottles can hold enough toiletries, as an excellent choice for sample bottles. TRANSPARENT BOTTLE BODY: The transparent body allows you to see the liquid in the bottle and is easy to clean. WIDELY USED: You can also share with family, friends and colleagues. Suitable for business travel, vacation travel, gym, school or outdoor activities, etc.