Utilizing 2 front wheels and 2 crutch tips on the back legs, the Walker B improves posture alignment. It also helps train and facilitate walking. The crutch tips provide a heightened sense of safety. A Walker BR has 4 wheels. An anti-return system is present in order to prevent the backwards rolling of this particular device. It is designed to help with the improving both the rhythm and length of the patient's steps. Select the model where the height handles are level with the height of the bottom support you will be requiring to choose your walker: