Straight foot till the ends are suitable for any kinds of head shape.
TR90 frame is very soft and abolutely comfortable. Metal sequins with steel screws can resist rust, sweat and salt water.
PC Lens(#2 Gray /Black-red Revo/AR coating):
Quasar with double resistent(UV rays & reflection light resistance) black-red revo lens
The purpose of Slider Kit is to gather common slideshow-like jQuery functionalities (such as news sliders, photos galleries/sliders, carousels, tabs menus)
When tracking mouse movement, you usually need to know the actual position of the mouse pointer. The event object that is passed to the handler contains some information about the mouse coordinates.