Slider to install inside a drawer. Adjustable length, width etc. in the OnShape model below. Uploaded STL is 300mm long, 12mm wide and has holes for M3 screw.

https://cad.onshape.com/documents/796c530a6730355e57e77179/w/6e4f96c4dfaac0bbaae4e1f4/e/0e7c3fb177c567da9dd36700?renderMode=0&uiState=68009799ed3eb5033175f13e

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