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. Dimensions: 2.09 in x 1.42 in x 0.83 in (5.3 cm x 3.6 cm x 2.1 cm) Weight: 0.56 oz (16 g)