10-gauge fishing line made of fluorocarbon, with a diameter of 0.520mm, offering high durability. Used a few times. Length is as follows: - Brand: Seaguar - Model Name: ace - Material: FLUOROCARBON - Gauge: 10 - Length: 3.5cm from the center to the middle of the spool Approximately 10 layers, about 20 rows, conservatively estimated. 7cm x 3.14 x 10 layers x 20 rows = approximately 44m (This is a simple calculation, so please forgive any errors. Please refer to the photos for confirmation.) - Diameter: 0.520mm Thank you for viewing.