fast&strong high quality micro servo. 2x ballbearing and metal gear + strong metal out going shaft. Perfect servo for ailerons or small elevator functions of fast Jet models like the Mig-29 or Phantom or F-22 ailerons. 20Ncm at 4,8V(0,13 sec) and 2,4Ncm at 6V(0,1Sec). Weight 9,5gram23x9mm and 29mm high