Specification: Type: Servo Tester Input Voltage: DC 4.8-6V Size: 48 * 42 * 17mm / 1.89 * 1.65 * 0.67inch Weight: 44g Package Includes: 1 x Servo Tester Note: ● Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same. ● Product's size made for manual measurement, 1-2CM error belongs to the normal range.