Note: This is the upgraded version and may differ in shape from the previous model. Features: Genuine Futaba 37.2g servos provide an efficient and reliable upgrade for your Futaba system. Futaba offers a wide range of sizes, shapes, and functions, making it a preferred choice among professionals, including RC competition experts and special effects technicians. SMT Construction – Surface Mount Technology enhances reliability in high-vibration environments. Impact Resistant, Fuelproof Case – Durable high-impact plastic resists damage from minor crashes and exposure to model fuel. Through-the-hole Circuit Board Plating – Eliminates the need for internal wiring or leads. Heavy Duty Output Shaft – Designed for durability and flexible servo horn installation. Nylon gears for smooth operation. Specifications: Speed: 0.23 sec/60° at 4.8V; 0.19 sec/60° at 6V Torque: 44 oz-in (3.2 kg-cm) at 4.8V; 57 oz-in (4.1 kg-cm) at 6V Dimensions: 1.6 x 0.8 x 1.4 in (40 x 20 x 36 mm) Weight: 1.3 oz (37 g) Connector: "J" type with approximately 5-inch lead Package Includes: 1 x S3003 Standard Servo 4 x Brass Eyelets 4 x Black Rectangular Rubber Grommets 4 x Servo Mount Screws 1 x Servo Wheel (1.375 in / 35 mm diameter) 1 x X-Shape Servo Arm (1.5 in / 38 mm across) 1 x Star-Shaped Servo Arm (1.25 in / 32 mm across)