... pen Promotional: Free sampleFactory direct sellingReal capacity and low priceOEM is welcomeSpecification: Material: Metal Capacities Available: 1GB, 2GB, ... blue, yellow, green, white, black ……Plug and Play, with LED indication light (depending on model )Interface: Hi-Speed USB 2.0 ... color blending and multi-colors printing Yield the best results on light and neutral-colored product surface(white, ...