The Next Generation First Responder® Evacuation Hardware Kit converts the Next Gen Serenity® crib into a safe and effective evacuation crib. The red, solid steel three-point gusset plate design combines with the Serenity crib’s SafeSupport™ steel box frame with center mattress support, providing superior strength and durability. Premium 4” non-marking casters will not damage floors. Evacuation kit includes four red gusset plates and four 4” casters. Compatible with Serenity® cribs only.