D'Addario EXL110 Bonus 10 Pack with Red Pro Winder, Regular Light, 10-46, 10 Sets Round wound with nickel-plated steel for distinctive bright tone Ergonomic Pro-Winder is an all-in-one string changing tool with a hardened steel string-clipper and easy to use peg winder. Made in the U.S.A. for the highest quality and performance Includes limited edition red Pro Winder