This daily pill organizer consists of an outer cylindrical shape shell and an inner cylindrical shape pill organizer, 100% waterproof and moisture-proof. Even if the pill box is taken to the beach or camping, the pill can be stored in a dry condition. Portable Design: The 7-day medicine organizers size is great and it fits perfectly in your purse to carry with you, each compartment (diameter:1.73, height:0.64) can hold a maximum of up to 3pcs big fish oils or 8pcs capsules and 12pcs of 0.4inch vitamins. Never Rubbed Off: The cute 7 day pillbox is laser engraved Sunday through Saturday, won' t rubbed off easily for over 5,000 times of use. Spill Proof: Our spin locking system can hold your pills firmly, never worry about other brands plastic pill cases unexpectedly pop-up and pills rolling in your bag or pocket. BPA-FREE Plastic: The travel pill case boxes are made of No gluten grain fiber, that are environmentally friendly. The bottom shell can be used as a water glass when you take medicine outdoor.