Re'an P300-H-098-S6 Tricolour Knob - Grey Insert

Black - A colour which does not emit any colour of the spectrum. Black absorbs all frequencies of the spectrum.

Diameter - A measurement across a circle passing through the middle

White - A colour combining all colours

Skirt - A garment which hangs from the waist to cover the legs

Grey - A colour often associated with old age (going grey)

Colour - The categorised spectrum of light visable to humans

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