Strong G2563 κάλαμος kalamos · reed/stick/pen

Revelation

1. Revelation 11:1
   And there was given me a reed like unto a rod: and the angel stood, saying, Rise, and measure the temple of God, and the altar, and them that worship therein.
2. Revelation 21:15
   And he that talked with me had a golden reed to measure the city, and the gates thereof, and the wall thereof.
3. Revelation 21:16
   And the city lieth foursquare, and the length is as large as the breadth: and he measured the city with the reed, twelve thousand furlongs. The length and the breadth and the height of it are equal.