ITEM NAME:1pc Rod Piezo Pickup Under-saddle for Acoustic Classical Guitar EQ Description: Piezo "under saddle" pickups for EQ Equalizer. The pickup is 110mm long and has a diameter of 1.8 mm. High performance and high sensitivity perfect reproduction of your acoustic guitar sound. Eay to use. Material: Ceramic Package Includes: 1 Piece Rod Piezo Pickup Note: Please allow 1-3mm error due to manual measurement..1 Piece Rod Piezo Pickup. High performance and high sensitivity perfect reproduction of your acoustic guitar sound. SKU: ALU0027054978005835. Due to the difference between different monitors, the picture may not reflect the actual color of the item.