These are Wilson Pro Stock Hyper Pro Staff 6.1 18x20 string pattern frames in BLX cosmetic that were intended for Juan Martin Del Potro, but he had over stock hairpins, and I was able to acquire them the year after the cosmetic change (2012). I was also able to put a 4 3/8 Wilson grip mold and not Del Po's normal 4 1/2 (to big for me). There is no lead under the bumper or elsewhere. The frame is in stock form, so you can customize it to your own spec! They are in amazing shape (did not want to scratch them), each have been strung no more than a couple times, and played just few times, practically in mint condition.
The nice thing too is that because this is the Pro Staff 6.1 mold you can change bumper guard very easy. These racquets are so tightly matched, you will not find another set of racquets this close to each other in spec and feel!
Specs (without grip): Weight: 312g (+/- 0.5g) Length: 27inch Balance: 8pts head light SwingWeight: unknown (sorry don't have access to machine). Please feel free to ask me any questions. The item "(1x) Wilson Pro Stock Hyper Pro Staff 6.1 Del Potro Hairpin 4 3/8 Tennis Rackets" is in sale since Sunday, March 3, 2019. This item is in the category "Sporting Goods\Tennis & Racquet Sports\Tennis\Racquets".
The seller is "huevosrancheros303" and is located in Denver, Colorado. This item can be shipped worldwide.