?Back Seat Extender+40% Space?VEVOR Dog Seat Cover for Back Seat Extends 40% backseat space, allowing your dog to walk around or stretch their limbs easily, this hard bottom dog seat cover for back seat with four sides flaps act as a safeguard, No more worrying about your pet accidentally leaping off the seat during sudden stops. | ?350Pounds Weight-3x honeycombo Board?Unlike other thin and soft dog car seat cover, The hard bottom car seat cover for dogs uses 3pcs detachable strong honeycomb boards support 350pounds weight capacity, much sturdier than the light wooden bottom boards on the market,This car seat protector providing strong support even for the largest dogs. Removable design features easy machine cleaning of the dog car seat cover. | ?Upgraded 7 Layer Protection?VEVOR Dog Backseat Extender Hard Bottom adopts heavy-duty materials, including 3x4 600D Oxford fabric with Honeycombo design, anti-scratch resistant,with PVC waterproof coating ,2 layers of Thick PP cotton filler, Sturdy Honeycombo Board, 210D Oxford fabric, PVC non-slip Mesh. With its unique 7-layer design, this car seat protector keeps the backseat dry and clean, No worry about the t stains, seats or doors damages during the traveling. | ?Breathable Mesh Window&Pockets?VEVOR dog car seat cover features a mesh window that allows your pet to see you, helping to relieve their anxiety during the drive.This back seat dog extender has 2xstorage pockets for Pet Supplies,The dog hammock for car also includes a safety belt to keep your pet secure during travel. | ?Service Support?The VEVOR dog backseat extender hard bottom with car bed size 54x25.6 fits most cars, and Mid-size SUVs. Use the adjustable straps to make the dog car seat cover fit your car perfectly. The dog car seat cover for back seat also comes with a carrying bag for storage,and you can install the car seat protector with 4-quick Steps and fold the back seat cover into a bag quickly.Take your dog on a perfect trip!