I have a K6.1 Tour in a 4-1/2 gripsize. I didn't realize the handle is actually big for me since my hand fits 4-3/8 and 4-1/2. It's in great shape (8.5/10) condition barely any scratches and normal headguard wear. Basically, I want the same racket just in 4-3/8. E-mail me if interested: email@example.com Thanks!