A $100 mouse you hold like THIS?? - Logitech MX Vertical Review - YouTube
Amazon.com: Logitech MX Vertical Wireless Mouse – Advanced Ergonomic Design Reduces Muscle Strain, Control and Move Content Between 3 Windows and Apple Computers (Bluetooth or USB), Rechargeable, Graphite : Video Games
Logitech MX Vertical - product overview video - YouTube
Logitech MX Vertical Advanced Ergonomic Mouse, Wireless via Bluetooth or Included USB Receiver - 910-005447 - Newegg.com