These space saving seats prohibit the accumulation and growth of body fluids and pathogens. Clean up seats quick with a spray and wipe sanitizer. When used with mating floor pan fluids can be washed down the drain hole. Drain hole liner prevents fluid from flowing underneath floor pan. The gray color of our ABS Bio-Seat/Flor Pan help to reduce temperature buildup inside vehicle and the gray color provides ideal contrast to prevent contraband or weapons from being hidden. The design of the Seat Belt Extenders positions the latch at an upward angle and the steel cable keeps it in position for seatbelting a prisoner in. These Seat Belt Extenders have been submitted for FMVSS 209 Compliance Testing by an independent laboratory and have been approved. Meeting Federal Motor Vehicle Safety Standards is critical to the safety and success of this product, and we are delighted to have met that standard.