Wireless Vertical Mouse, Ergonomic Wireless Mouse 2.4G High Precision Optical Mice, Reduce Wrist Pain (for Small Hands) : Electronics

J-Tech Digital Wireless Ergonomic Vertical Mouse with Nano Transceiver, 3 dpi, Windows Mac, Black [V628M-2.4G]

ERGONOMIC DESIGN - Places your hand in a natural handshake wrist & arm position for smoother movement and less muscle tension. Cute Rounded shape

SANWA 2.4G Wireless Ergonomic Mouse, Optical Vertical Mice, for Small Hands, Reduce Wrist Strain, (800/1200/1600 Adjustable DPI, 6 Buttons) Compatible

Best Wireless Ergonomic Vertical Mouse with USB 1600 DPI Black - J-Tech Digital

Mouse features an ergonomic design to help you rise above discomfort and reduce muscle strain, decrease wrist pressure and improve posture. Vertical construction keeps your hand in a natural handshake position to reduce muscular strain by 10 percent and promotes a more ergonomic posture. 57-degree vertical angle reduces the pressure on your wrist, while your thumb is positioned comfortably on the thumb rest.