This object was made in Tinkercad. Edit it online https://www.tinkercad.com/things/fR4DsYJOYdI

Designed to use on as a lid on Jaycar Jiffy Box:
CAT.NO: HB6013 Jiffy Box - Black - 130 x 68 x 44mm
CAT.NO: HB6023 Jiffy Box - Grey - 130 x 68 x 44mm

Bottom side switches are for changing the polarity of the points.