Boring to bag design, let a person as if returned to the student, whether it is for private use or a gift is a good choice. Shell design, integration, use them connect usb cap and U disk, let the user no need to worry about lost cover. RYVAL original signature function. In home can give signature with random post, and the dust in the U disk write his own name, to prevent the U disk with fault, lost. Import environmental protection of PVC material shell, perfect the protection of the usb chip, even if U disk fell into the water, dry can still be used normally after operation. Eight colors can be chose.