Plugable Halloween Wrist Snap Band With Hidden 8GB USB Flash Drive (8 GB, Glow Green) Integrates a hidden flash drive in the band, so your young student can easily keep track of their academic files. Glows in the dark, great to keep track of kids during trick-or-treating! 8GB of Class 4 flash memory that will work with nearly any device with a USB connector, more than enough storage for your child's homework files Slim USB connector keeps the entire unit no thicker than a normal snap band Snap band size is 9.75" (25 cm). Band curls around and conforms to wrist to fit almost anybody