K-Power .12 s Premium Standard Analog Servo Dual Bearing Metal Gear Toy, 10.5 Kg Speed @ 4.8V / 6.0V: .13 sec. / .12 sec. Torque @ 4.8V / 6.0V: 133.3 oz.-in. / 145.8 oz.-in ; Torque @ 4.8V / 6.0V: 9.6 kg-cm / 10.5 kg-cm Weight: 58g; Bearings: DUAL; Size (L / W / H): 40mm / 20mm / 37.5mm