Specifications:100% Original Walkera brand.100% Brand New.Suit for: Walkera Master CP 6CH 3D HelicopterHigh quality and durable in use.Easy to install.Package size: 10 * 10 * 5 cm / 4 * 4 * 2 inPackage weight: 42 g / 1.47 ozPackage list:1 * Original Walkera Part Speed Controller ESC HM-Master CP-Z-24