Firefighter Door Opener Stop Safety Wedge Pack Door & Sprinkler Combo Pack 4 Thermal plastic rubber Door and Sprinkler Wedges. Comes four to a pack- 2 yellow and 2 orange. A very handy wedge to carry in your pocket or on your helmet. Door & Sprinkler Combo Pack 4 Only 3 long. Thermal plastic rubber Door and Sprinkler Wedges. Comes four to a pack- 2 yellow and 2 orange. A very handy wedge to carry in your pocket or on your helmet. Door &amp; Sprinkler Combo Pack 4 Only 3 long.