Feature: 100% brand new and high quality Made of high-quality material, durable, firm and has a long service life. It is 1 Set of 4pcs brass strings. Compatible with for 4 string acoustic bass. Good tools to replace your acoustic bass string. Specifications: Item Type: Acoustic Bass String Material: Brass, Carbon steel core Size: 1-4 string: 045, 065, 080, 100in; 1.14, 1.65, 2.03, 2.54mm Color: As Picture Show Quantity: 1 Set Package Includes: 1 Set x Acoustic Bass String Note： Please refer to the measurement. Tiny measuring error is allowable in normal range. There might be a little color difference due to the monitor, camera or other factors, please refer to the physical item. Our products are made of environmentally friendly materials, safe and non-toxic, and will not cause harm to the human body. Please read the product manual carefully before purchasing, and use it correctly according to the operation steps. If you encounter any difficulties or problems during use, please contact us in time, we will solve them for you as soon as possible. Your support is the driving force for us to move forward, and we look forward to sharing your experience and experiences with us. For the quality problems or defects of the product itself, we will provide unconditional return or repair service.