Sensu

Fans (Sensu) for the Tea Ceremony are different than most other Japanese fans.  They are smaller and lighter;  they are never opened in the tea-room (well, hardly ever). The sense represents the boundary of your space;  thus, when greeting another person in the tea-room, each person puts the fan in front of them.

Women's sense are typically shorter then men's:  6.0-inches long for women; 7.1-inches long for men.