martin collar adjustable nylon purple 4Adjustable Nylon Collar Purple 40 55 cm With this comfortable, adjustable collar around his neck, your dog will happily go for a walk. The owner has also been considered; thanks to the convenient click clasp, you can attach and detach the collar in one swift motion. 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 kg without snapping open.