1 Suitable for promotional gifts and souvenirs. 2 This kind of USB flash drive is selling well in many countries and which have a good quality. 3 Material: plastic. 4 Shape & color: customized. 5 Memory capacity: 64MB/128MB/256MB/512MB/1GB/2GB/4GB/8GB/16GB. 6 Operating system: windows ME/98/2000/XP, Mac. 9.0 or above. 7 Hot plug & play. 8 USB flash drive with RoHS and CE. 9 Other requirements: hot stamping, embossing, laser engraving, silk screen logo printing are available.