Yep, this is a mousepad with boobies on the front – life-size boobies mind you, so if boobies (or mousepads) offend you, move along. Said boobies are to designed to give your wrist support. What kind of demented game is Dead or Alive Extreme 3 anyway? This girl looks like she has five nipples on her right breast.
Al Bundy once said his perfect woman would have three hooters, one on the back for dancing, not five nipples. The characters on the mousepads are Honoka and Marie Rose if you are wondering. Apparently, life size boobie mouse pads have a name in Japan- 等身大おっぱいマウスパッド or toushindai oppai mausu paddo.
The mousepads weigh 2100 grams, with 1600 of that weight in soft and squishy mousepad boobies. I hope your desk is at least DDD sized. These gals would have some back issues in the real world.