MbientLab's USB Round Case/Enclosure (Lower half) to fit your MetaWear Smart product board available at www.mbientlab.com/store. The enclosure fits a 26mm x 17mm x 5mm MetaWear board with a lithium battery attached. This case has a slit for the micro-USB header to recharge your MetaWear board.
This case will fit the buzzer and motor vibrator and extra sensors you may want to attach to the board.
You may want to resize this case before you print it so it fits your project.
You will need the USB Round Lower 915 part to mate with this part.