Dogs are loyal and faithful creatures and one of the most beloved pets in the world. They have a keen sense of smell and direction. They are very obedient and can sense a human beings presence from far off distances. They are next in line to humans when it comes to solid companionship and they are such loyal pets that you can place your implicit trust with them. They are also good hunting and working mates. Besides providing you with their loyalty and companionship they also work in various capacities such as assisting the armed forces. They also help in assisting the police force as well as care for handicapped individuals.

Also referred to as 'a man's best friend', they perform various roles like being guardians, a child's playmate or even a hunting companion. They are increasingly being used as security agents by the police and government authorities across the world today. They provide an immense amount of emotional support to their owners in response to the love, care and attention they receive. Some dogs also help with pulling loads. Epileptic patients are greatly cared and looked after by their dog as they alert them of any coming seizure or attack well in advance, giving the owner the chance to receive medical care or hospitalization at the earliest. Dogs love sports like sledding, running and racing.

A dog door is a flap on the house door which allows the dog to enter and exit a house on their own without any human help. These devices help dog owners in avoiding any unwanted behaviour like scratching on the walls and doors or excreting in the house. They are made of soft materials such as plastic, soft vinyl or aluminium which is safe for the animal. Electronic or automatic dog doors are widely used as they control the entry of any outside dog or animal. Dog doors are also commonly referred to as pet doors. With the use of such a utility tool, you don't have to wait for your dog to let you take him outside, giving them the freedom to move in and out of the house whenever they please.

You can purchase one from your local pet store or pet utility store. Large dog doors are especially built for large dogs. You can find a number of reviews about dog doors on-line. You can choose the one which is best suited for your dog's daily needs. You should decide where you want to install your dog door as different designs and shapes are available depending on the area or space you choose to fit them into. Choose one which accommodates the size and weight of your dog. Better priced doors and a larger variety of doors are available on-line. These devices save you time and energy, and are a convenient way to let your dog move around freely, avoid accidents and other mishaps around the house.