this is a cranium scull usb flash disk 16GB promotional items, ｐｖｃ ｃｕｓｔｏｍ ｐｕｐｐｅｔ ｄｕｍｍｙ usb flash memory 8GB, the appearance is skull, cranium， net weight is １３ ｇｒａｍｓ, skull death's head usb sticks size 6.2x２.2x0.４cm, a luxury a framework of bone or cartilage enclosing the brain of a vertebrate; the skeleton of a person's or animal's head. but also a thumb drive, save data and transfer files, laser engrave logo or print advertising info, best ｓｋｕｌｌｓ shape usb disk, digital storage device has capacity range from 1GB to 32GB.