Large capacity - This pill box 7 days 3 compartments has 21 slots. Each slot can hold up to 6 fish oils or 8 vitamins. Tighter outer case - two locks ensure that the lid on the outer casing closes super tightly. EVERY DAY YOU NEED - The separate daily pill containers can be removed in a bag without worrying about opening the dumping out medicine - super convenient for one person to take the pills three times a day. BPA free – The pill organiser is made of high-quality plastic plastic, keeps you and your pills safe. Total the whole medicine organizer: 20.4 x 11.1 x 3.6 cm, the size of each individual pill box: 10.1 x 2.6 x 3.1 cm.