This is a 3D Printed power bank casing. The upper cap tight lock type. The circuit comes of single USB power bank circuit. This circuit is Type C charging port and USB dischareg port. Case colour can be varied. You can connect a 18650cell to make a power bank from this case. this case supports up to 3000 mah battery. The battery should be 18650 lithium ion cells.
Item inlcude -
1 x Case
1 x circuit (if choose)