The school mainly consists of male students/teenagers with the age in range of 13 to 17 years old and thus, most of them are experiencing hormonal changes symptoms. Due to this, excessive oily sebum is generated by their skin. The sebum interacts…

The present invention provides a bottle replenishing tool for lifting, conveying, and invertably positioning a water bottle onto a water dispenser, the bottle replenishing tool includes: a) a supporting structure adapted for supporting, transporting…