Material: PC+silicon Proportion of new plastic materials: 100% Number of cells: 4-6 Good quality: Every pill case is made of high quality material , not only sturdy and durable, also safe and eco-friendly, has better stability and suitable for storing pills . MOISTURE PROOF & PROTECT PILLS: With the thickened silicone seal ring surrounded, can keeps your travel pill case closed tightly and prevent your pill from moisture and dust, you can always take fresh pills and say goodbye to damp pills. DOUBLE LOCK & REMOVABLE LIDS: Each compartment with inner closed removable lids and outer secure lock, effectively keeps the pills from falling out and getting mixed, removable lids also is convenient for you to clean the pill case. The outer lock closed tightly, no worry that the case will pop open in your purse. PORTABLE SIZE & FOR TRAVELING: Size of this pill box is portable , can be easily put in your purse, suitcase, backpack, handbag, even your coat pocket, without taking up space, very convenient to carry on a trip. Specification:7.5*7*2cm for four grids, 10*7*2cm for six grids.