This remote ID mapping accessory is an accessory used with the special model line finder to achieve the remote ID mapping function, if you need this tool, you can buy it with your cable tester. Features: With this tool, you can make your cable finder achieve ID mapping function. 3PCS/7PCS optional, you can choose the suitable suit according to your needs. Only includes the accessory, cable finder is NOT included. Portable size and easy to carry, you can put it into your tool bag easily. Should be used with your cable finder. Specifications: Material: plastics Quantity: 3PCS/7PCS (optional) Package size: 3PCS: 58 * 45 * 25mm / 2.3 * 1.8 * 1.0in 7PCS: 120 * 90 * 35mm / 4.7 * 3.5 * 1.4in Package weight: 3PCS: 39g / 1.4ounce 7PCS: 117g / 4.1ounce 3PCS Packling list: 3 * Remote ID Mapping Tool 7PCS Packing list: 7 * Remote ID Mapping Tool