The HALTI makes training and behaviour modification of dogs practical and safe. It can be used in a number of ways: either as a passive means to simply stop dogs pulling, or as an active training aid. Handlers can gently direct the dog's head steering him into desired positions which can then be rewarded and linked to a command associated with that posture, for example 'sit'! The HALTI range features six sizes in four colours and there is also a special leather-padded edition available.