Airtronics 94722 Standard BB Digital Servo Weight: 1.55 oz (43.9g) Dimensions: 1.54" (39.1 mm) x 0.79" (20 mm) x 1.42" (36mm) Torque@ 4.8v: 50 in/oz (3.6 cm/Kg) Speed/60 degrees@ 4.8v: 0.17 sec