1. [EXPANDABLE and HIGH CAPACITY]-The file organizer keeps each slot's papers separated and organized in a good manner.Product Size: Length: 32.5cm High: 23.5cm, width:0.2cm.Expandable property gives it a possibility to hold approximately 350and A4 sheets. 2. [STABLE and WATERPROOF MATERIAL]-Our alphabetical accordion folder is made from polypropylene (PP) plastic material (nontoxic and nonradioactive), which is environmental and friendly, also not easy to break or deformation. Waterproof and moisture-proof material can keep your important documents clean. 3. [WIDELY USE]- Our expanding file organizers are good to organize utility bills, invoices, letters, A4 paper and other documents. Good for school, office, home use, or as good gift for teachers, students, doctors, engineer, designer, researcher, salesmen etc 4. [ELASTIC BUCKLE DESIGN] The expanding file folder features a Buttons, protecting documents safe and firmly in place during transport 5. [APPLICABLE SCOPE] Organizer folder is good to organize utility bills, invoices, letters, A4 paper, and other documents. Good for school, office, etc Color BlueandpinkMaterial PlasticStyle PocketSheet Size Letter, A4 Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.