martin collar adjustable nylon beige 4Adjustable Nylon Collar Beige 40 55 cm With this comfortable, adjustable collar around his neck, your dog will happily join you for a walk. The owner has also been considered, as the handy click clasp 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 113 kilos without coming undone.