This is "Junmen Mizuito" manufactured by Takumi Co., Ltd. Product Name: Junmen Mizuito No. 5 100m Manufacturer: Takumi Co., Ltd. Material: Pure cotton (100% cotton) Thread Thickness: Approximately 0.9mm Main Uses: Surveying, kite flying Other Uses: Also used for general crafts, gardening, and as a string for cooking. Product Features: Made of pure cotton, it is non-slip and can be tied securely. Thank you for viewing. This item is being sold due to my mother closing her shop. Thank you for your purchase.