OKW Round Combination Knob Ø23mm - Black With Indicator Line

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

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

Key - A physical or virtual device or code used for opening something

40mm - The equivilent of 4cm

Rotary - something that revolves around an axis, for example an engine.

Simple - Basic, easy no difficulty in understanding.

Assembly - A gathering of people for a purpose e.g. a school assembly

Assembly - A gathering of people all together for the same purpose.

Combination - The process of two of more things being mixed or combined together.

Convenient - Something that suits and fits well to other activities.

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