D'Addario Pro-Arte EJ52 are normal tension nylon strings for alto guitar. I am selling these because I mistakenly purchased strings for an alto guitar with a different gauge. These are not for a standard classical guitar. There are quite a few counterfeit D'Addario Pro-Arte strings on the flea market, but these are genuine. - Brand: D'Addario - Model Name: Pro-Arte EJ52 - Type: Nylon Strings - Tension: Normal Tension - For: Alto Guitar - Material: Silver-plated wound, clear nylon - String Gauge: EJ52 I will ship via Yu-Packet Post. #Guitar Strings #Concert #Classical #Nylon Strings