Model: -B004-C-CYW-01 24KG semi-aluminum frame brushless servo Stall torque: 25.0kgf.cm at 7.4V Working voltage: 6.0~7.4V DC No-load speed: 0.12sec./60 at 7.4V Operating angle: 18010 (500~2500s) Mechanical limit: 210 Operating angle: CCW (10002000s Shell material: PA+30%GF, aluminum middle shell Dimensions Material: Metal Gears Motor Type : Brushless Motor Color: Black & Red Material: aluminium alloy Package Contents: 1 x S2400BL 24KG brushless digital servo 18 x Gadgets Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.