D'Addario EXL160 Bonus 2 Pack with Red Bass Pro Winder, Medium, 50-105, 2 Sets Round wound with nickel-plated steel for a distinctive bright tone with clear fundamentals Bass Pro-Winder is an all-in-one string changing tool with a hardened steel string-clipper and easy to use peg winder Fits long scale basses with a string scale length of up to 36 1/4 inches Includes limited edition red bass Pro Winder