From Amazon
D'Addario Bass Guitar Strings - XL Nickel Bass Strings - EXL160-5 - Perfect Intonation, Consistent Feel, Powerful Durability - For 4 String Bass Guitars - 50-135 Medium 5-String, Long Scale
GAK
D'Addario EXL160-5 Nickel Wound 5 String Bass, Medium, 50-135 Long Scale Bass Guitar String