Please read to the end. We will not accept claims from those who purchase without reading. Please make your decision after understanding. This is the SX300, a spin-oriented racket from Dunlop. The weight balance has been adjusted. Lead tape is applied at the 11 and 1 o'clock positions, in four places. The lead tape has been painted black to make it less noticeable. Please check the photos. Cushioning material has also been inserted inside the end cap to prevent the lead tape from shifting. Based on the theory of Mr. Murai, a racket master in Chiba (adding 1 gram to the top increases the swing weight by about 3.5, and the balance also increases by 1 mm; adding 1 gram inside the end cap lowers the balance by about 1 mm, and the swing weight does not change), I made the adjustments myself. (I have asked Mr. Murai to make adjustments many times in the past and learned the mechanism. Now I can make adjustments myself.) Please remove the lead tape yourself after purchasing. However, the specifications will change if you remove it. A higher swing weight makes it easier to generate power. By making it top-light, the maneuverability has been improved. I think the swing weight is around 290 without strings. Current SX300 models often have a swing weight of around 270-280, so while they generate spin, they may lack the power to finish a point with one shot. Currently, with the strings (Baiface 124) and overgrip, it weighs 328.3g, has a balance of 323mm, and a swing weight of 314.5. It is top-light and easy to swing despite being a thick racket. Ten Elastocross pieces have been inserted in the same position as Federer's racket. Please check the photos. The strings were replaced on October 24th and have only been used about three times, so they are still usable as they are single-string Baiface. Finally, please make your decision after looking at the photos, and please understand that no returns or refunds will be accepted after purchase. Shipping will be done in the cardboard box shown in the photos. There is another item with the same specifications, B, but if the buyer requests to purchase them together, we may accept a discount request depending on the situation. Thank you very much. - Brand: Dunlop - Color: Green/Yellow - Type: sx300 - Grip Size: 2 Thank you for viewing.