4-string set for U-BASS, 20-21 inch scale, with gauges G: 125, D: 156, A: 187, E: 200. - Brand: U-BASS - Model Name: 4-STRING U-BASS STRING SET - Scale Length: 20-21 inches - String Type: G, D, A, E - String Gauges: 125, 156, 187, 200 Thank you for looking. I am selling these because I bought them by mistake. The product is as follows. Retail price: 8000 yen https://www.amazon.co.jp/gp/aw/d/B003JZ1444