This mousepad is of Shizune Futo from the popular eroge by Hadashi Shoujo, Oshioki Sweetie.

In this world, there are oppai mousepads for "casuals" and then there are the full sized oppai mousepads made by Softgarage, the amazing company in Shizuoka Prefecture who has developed the most realistic life-sized oppai mousepads ever. High quality materials are put together in a workshop in Japan by highly skilled workers. The feel of the silicon's softness and the fabric's smoothness. All of these come together to create a unique product that's exquisitely pleasant. You'll love using the mousepad, and touching her soft 118cm large breasts.