They are to take a blue cloth and cover the lampstand used for light, together with its lamps, wick trimmers, and trays, as well as the jars of oil with which to supply it.
Jewish Publication Society of America Version (JPS1917) - Numbers 4:9 >And they shall take a cloth of blue, and cover the candlestick of the light, and its lamps, and its tongs, and its snuffdishes, and all the oil vessels thereof, wherewith they minister unto it.