Beirui 3" Width 4 Rows Sharp Spiked Studded Soft PU Leather Dog Pet Collars Necklace for Pitbull Boxer Large Breeds 4 sizes available: M:3"(7.5cm)Width,22"(56cm)total length, Neck size for 17-20"(43-51cm). L:3"(7.5cm) Width, 24"(61cm) total length,Neck size for 19-22"(48-56cm). XL:3"(7.5cm)Width, 26"(66cm) total length,Neck size for 21-24"(53-61cm) XXL:3"(7.5cm) Width,28"(71cm) total length,Neck size for 23-26"(58-66cm). Material: PU leather, soft and not stiff, strong enough.Cool style make your dog stand out among the masses For the rivets are accurately SHARP, it's not safe for dog wearing while playing with your children or people.Please take a good control of your dogs while wearing this collar Feature: 3" width, 4 rows full sharp spiked,cool and look aggressive.