The cool dog car ventilation tailgate lock.. This amazing product is designed to allow greater airflow and ventilation by keeping the tailgate open but locked. An open window on a warm day is not good enough to keep a vehicle cool enough to leave a dog.. The cool dog car ventilation tailgate lock allows more ventilation into your vehicle  than only leaving windows open. It works by fixing the rear tailgate or door in a half open position and with a front window open just a small amount, it will allow air to flow and circulate through your vehicle helping to keep your dog cool.. The cool dog lock secured between the vehicle and tailgate will deter all but most determined criminal.. The cool dog tailgate lock can be fitted and removed  very quickly with little effort, your vehicle can then be locked in the usual way.. Fits nearly all estate cars hatchbacks vans or 4 wheel drive vehicles fitted with a rear door.. Although the cool dog tailgate lock does fit almost all vehicles we understand there may be the odd  vehicle that it won't fit, due to this we offer a no quibble 30 day return policy on this item, all we ask is that you let us know what vehicle you have so we can share this information with future customers.. Ex small size  10cm 4 inches. Small size  15cm 6 inches. Medium size 23cm 9 inches.. Intermediate size 30cm 12 inches. Long size 51cm 21 inches.. The thread size and pitch is m8 x 1.25 of the hooked part.. All sizes of the tailgates are with the same thread and pitch size.. Important when fitting your cool dog lock, ensure that there is no access to any release catches, buttons, or handles from outside the vehicle.. Fitting is quick and easy simply. 1 unscrew the hook and screw on to the latch. 2 attach to latch on door and lock.. The lock is for use with stationary vehicles only, do not use whilst driving.. The cool dog is suitable for use on the following manufacturers vehicles. Audi. Bmw. Chrysler. Chevrolet. Citroen. Daewoo. Diahatsu. Fiat. Ford. Honda. Hyundai. Infiniti. Isuzu. Jeep. Kia. Lancia. Land rover. Lexus. Mazda. Mercedes. Mitsubishi. Nissan. Opel. Peugeot. Proton. Renault trafic and laguna only. Rover. Saab. Seat. Skoda. Ssangyong. Subaru. Suzuki. Talbot. Toyota. Vauxhaul. Volkswagen. Volvo