Change Cursor preferences for accessibility on Mac
On your Mac, use the Cursor pane of Accessibility Display preferences to make it easier to find the pointer on the screen.
To change these preferences, choose Apple menu > System Preferences, click Accessibility, click Display, then click Cursor.
Shake mouse pointer to locate
Quickly move your finger on the trackpad or quickly move the mouse to temporarily enlarge the pointer so you can find it.
Drag the slider to increase or decrease the size of the pointer.