R.A.T. 7 by MAD CATZ has it
A scroll mouse is a mouse which includes a scroll wheel. The scroll wheel can be used to scroll up and down webpages or documents, and can also be clicked as a third button.
Horizontal and vertical scroll bars are used to navigate through content that extends beyond the visible area of a window or container. The horizontal scroll bar allows you to move left or right, while the vertical scroll bar lets you move up or down. You can click and drag the scroll bar thumb to adjust the view, or click in the empty space of the scroll bar to jump to a specific location. Additionally, you can often use a mouse wheel or touch gestures to scroll quickly through content.
how to scroll down on MAC with mouse
If you have not clicked on the page you are trying to scroll on with the mouse or on the scroll bar its self then you won't be able to scroll on the page till you do.
On my W vauxhall corsa the dimmer switch is just under headlight switch (small scroll horizontal switch-like the scroll button on a mouse)
If you have an external usb mouse, click in the wheel and slide your mouse up or down to scroll.
You can scroll down by just using the mouse. If you have a scroll on your mouse, just push it backwards. The page will scroll down instantly.
A scroll button or mouse wheel.
it allows u to scroll up and down on your computer
manually operated user selection equipment =mouse
the middle piece on the mouse
You use two fingers and stroke downward on the mouse pad to scroll down and to go up you stroke upward.