e/Piano trolley

Information
has gloss	eng: A piano trolley is a two- or four-wheeled trolley approximately 0.5m long used by removals companies for moving pianos. It is placed under the centre of mass of the piano and allows it to be turned on its axis to manoeuvre round a building. By placing the trolley at one end of the instrument stairs may be negotiated. In tight spaces the piano may be turned on end and rested on the trolley.
lexicalization	eng: piano trolley
instance of	e/Human-powered transport