Hi, These racquets were given to me by a good friend, who also happens to be a well-known stringer. He believes they were used by Jarkko Nieminen a couple years back when he was experimenting with open string patterns, but he is not sure, and therefore doesn't know what is under the paint. Unstrung specs are: 350g, 325 sw, 12.75 in. balance, 27 in. length, 66 RA flex, and they are all 4 1/2 with Wilson leather. 8.5/10 condition. They all come strung with ALU/VS @ 60/62 lbs. $800 shipped for all four, or $225 for one. For questions or pics, please contact me at firstname.lastname@example.org. I have plenty of positive references under my user name. Thanks for looking!