Mini USB shredder is made of high quality ABS+metal material and can be powered by USB power supply or 4xAA battery. (without battery) It is ideal for grinding and secrecy of banknote counters used by financial systems and securities trading platforms. The grinding material is in the shape of 2 - 3 mm wide ribbon, the chopped paper ribbon can be used as a wrapping filling. Compact size, cute and practical, opener and shredder are ideal for the office. A4 paper must be half-perforated to be cut. Specifications: type: Mini USB Shredder Weight: 650g Size: about 15x14.5x10.5cm / 5.9x5.7x4.13in Material ABS + metal For: A6 paper (the A4 paper must be semi - perforated to be cut) Note: Since sending batteries is not allowed, please prepare them yourself when using this product. Products will be updated constantly, and appearance and color may change, which may won't bother you. If you have any color or appearance requirements, please consider them before placing your order. Due to the lighting effect and shooting angle problems, it there will be tolerances in the product, please understand. Please allow 0 - 1cm error due to manual measurement. Package includes: 1 x shredder