LeaningTech EMAX ES08MA II 12g/ 2.0kg High-speed Micro Metal Gear Servo for trex 450 mg90s 9g 100% original and brand new Type: ES08MAII (ES08MA upgrade) Size: 32 x 11.5 x 24 mm(1.25 x 0.45 x 0.94in) Gear material: metal Connector Type: Futaba/Jr compatible