Sturdy Hard Platform The platform bridge has three sturdy rigid hard platforms that maximize backseat space while restraint dogs from falling off the seat. The back seat space is more spacious and comfortable for your dogs travelling, Holds up to 200 lbs. 2 Door Protectors Included Connecting 2 door protectors with zippers to prevent pets from scratching the door. Universal Fit The size of the car back seat gap filler is 52.1*24.9 inch, suitable for cars, small trucks and SUV. The car seat should have a headrest bar so that the rope can be fixed. Easy to Clean YMETECH Car dog travel bed easy to clean.