The dual-purpose cardboard folder series is made of high-quality cardboard, with colors such as blue, gray, black, and red on the surface. The size of the specification is designed for A4. The folder is designed with dual strong clamps, with clamps on the top and sides, allowing for the clamping of two different documents at the same time. Its durability is very strong, and it will not easily fall off, making it suitable for carrying around without any problems. It is very suitable for file organization and meeting records, etc. It is a contemporary office supply. The wholesale sales price of the dual-purpose cardboard folder series can be negotiated, with 50-60 pieces per piece, and the minimum order quantity is 5 pieces.