Inline switch, gold coloured plastic. On and off button is a push button.
To open: remove the two screws, see 2nd photo (silver colored circles).
The switch has internal copper clamps (with small screws) to hold the wire.
See the 3rd photo for this.
Actually, all fairly self-explanatory.
|Heigth (cm):||6.0 (2.4 inch)|
|Width (cm):||2.5 (1 inch)|
|Thickness / depth (cm):||1.5|