Found 2 3D-models for “extension sleeve” across many websites

#insert#dinner in paris#drywall insert#drywall#organizer#extension#boardgame inserts#vertical#Electrical Box#Light Switch Cover
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Electrical receptacle extension ring

Electrical receptacle extension ring

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Dinner in paris insert organizer with custom terraces - extension, vertical and sleeves compatible

Dinner in paris insert organizer with custom terraces - extension, vertical and sleeves compatible

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