Function: 8 Frequency Urethral Sounding DilatorColor: BlackSize: 20.0 * 0.7 cm/7.88 * 0.28 inchInsert Length:18.0 cm/7.09 inchSize: 6.1 * 1.7 cm/2.4 * 0.67 inchController Size: 8.6 * 4 cm/3.3 * 1.57 inchPower: Lithium battery/CR2025Material: ABS + SiliconePackage: OPP Bag