Matias Folding USB Keyboard The ultimate keyboard for your laptop Innovative folding design allows you store in laptop bag  Unfolds into a full-sized desktop keyboard with number pad  High-quality dome switches give the keyboard a responsive feel A Tab key on the number pad allows one-handed number entry into forms and spreadsheets Volume Up, Down, and Mute – as well as function keys, page navigation keys, and cursor keys Dimensions Inches:                                         Open 18(L) x 5(W) x .9(H) / 2 lbs                                                                   Closed 10(L) x 5(W) x 1.4(H)