Boltorage 7V Red Model (Discontinued Model) String used: Sonic Blow Tension: 26V (vertical and horizontal) UL1 I haven't restrung it in over a year, so the strings are likely stretched. I used it in a few matches, but haven't used it since, so I think it can still be used. It has grip tape wrapped on it, so you can add more or shorten it to your liking. Grip tape and edge guard will be included as accessories. No returns or exchanges to prevent swapping. Please read the profile before purchasing. YONEX Boltorage Sonic Blow Soft Tennis