Savox micro size digital servo 2. 2kg@6v (heli & parkfly) + this is the savox sh0253+ super speed micro digital servo. Features over-spec refined design out performs ordinary micro size servos. The metal case design looks good and allows for cooler and smoother operating temps. Metal gears forms a solid framework for precise control and operation. Strict production and quality control of plastic components ensure quality construction. Our servos are totally green – from materials to production, these servos are environmentally friendly. Ideal for ccpm and rudder on 450 class heli's and park flyer airplanes. Specifications dimensions: 22. 8x12. 0x25. 4mm weight: 13. 6g speed (@4. 8v sec/60):. 13 torque (@4. 8v oz-in): 25. 0 speed (@6. 0v sec/60):. 09 torque (@6. 0v oz-in): 30. 6 gear: metal & plastic bearing: 1bb case: aluminum spline: 21 tooth savox plus / ""+"" models: feature a new soft start mode and sanwa ssr compatibility. (sav-sh0253)