martin collar adjustable nylon black 5Adjustable Collar Nylon Black 20 30 cm With this comfortable, adjustable collar around its neck, your dog will happily go for walks. The owner has also been considered, as the convenient click buckle allows you to fasten and unfasten the collar in one movement. Additionally, you can easily adjust the collar using the plastic buckle on the collar. The collar is resistant to pulling and tugging and can withstand up to 36 kilos without coming undone.