kocao 3" Width 4 Rows Sharp Spiked Studded Soft PU Leather Dog Pet Collars Necklace For Pitbull Boxer Size: Neck size for 17-20"(43-51cm), 3"(7.5cm)Width,22"(56cm)total length. Color Cllar Feature: 3" wide, 6 rows full sharp spiked,cool and look aggressive. Material: PU leather, soft and not stiff, strong enough.