If you travel regularly with more than one dog, particularly if you drive an SUV, you might want to consider one of these barriers. They need to be fastened securely with tension bars and can keep you safe as well as contain your pets. Always try to put something soft and shock absorbent where the hardware attaches to the car. Some of the barriers use wing nuts that can protrude and cause injury in case of sudden stops or collisions. Be sure to check these barriers frequently since they tend to loosen up during travel.