PU File stand office use - made by strong cardboard coated with PU - delicate design - OEM PU File stand office use1. Inner material is cardboard and any grams are avaiable.2. Surface covering with PVC paper.3. Specification: according to customers' requirements.4. Function: for file storage.5. Delicate design, fine craftmanship, high quality and reasonable price.6. OEM are welcome.