Are Martingale dog collars recommended? (Aussie Pet Review)
http://aussiepet.wixsite.com/news/single-post/2016/05/14/Mаrtіngаlе-Cоllаr-Bеnеfіtѕ
A no-slip dog collar is a variety of canine collar that offers more restraint over the hound without needing the unpleasant effect of a prong dog collar. The no-slip dog collar is also known as no-slip collar. The no-slip dog collar was produced for canines that their necks are larger than their heads, and can often slip out of classic collars. The greyhound dog collar have acquired popularity between other dog owners.
