This is a single Manfrotto Autopole. These single action locking cam Autopoles mount between the floor and ceiling of a studio. If the studio ceiling is higher than 12.2' (3.7 m), Autopole bases or Autopole extensions may be ordered separately.
 
https://www.bhphotovideo.com/c/product/546443-REG/Manfrotto_032_032_Single_Autopole.html