Meta description:

This small, metal sphere is filled with a volatile mixture of chemicals that produce thick, white smoke when ignited. When the fuse is ignited, the chemicals explode, releasing a thick cloud of smoke that fills the area and obscures the vision of those behind it. The character throws the grenade, which after 4 seconds causes a 2-meter-radius sphere of smoke to form for 12 seconds. Every meter of smoke obstruing the view on a target causes a malus of -1 on all Vigor or Reflex tests to hit them.