YONEX Soft Tennis Rackets Set of 2 NANOFORCE 500V MUSCLE POWER 400 These rackets were used over 10 years ago, so the strings and grip tape will need to be replaced before use. There are many scratches and stains. The NanoForce has guard tape applied that is deteriorated and falling apart. Both rackets have deteriorated grip tape that will peel off and stick to your hands when held, so please be aware. Please understand the above before purchasing. Thank you.