Type:PU Leather Spiked Studded Rivet Dog Collar for Puppy Small Medium Dogs Materail:PU leather 5 Colors:Brown,Red,Pink,White,Black Features: Studded,cool rivets,fashion design Steel buckle,heavy duty D ring,5 eyelets adjustable Fit for X-Small,Small and medium dogs,puppy,cats,e.g.Chihuahua/Yorkshire/Bichon Frise/Pomeranian/Poodle/Schnauzer/French Bulldog/Dachshund/Beagle/Cocker Spaniel,etc. SizeNeck forWidth XXS6-8"(15-20cm)1.0"(2.5cm) XS8-10"(20-25cm)1.0"(2.5cm) S11-13"(28-33cm)1.0"(2.5cm) M13-15"(28-38cm)1.0"(2.5cm) L15-18"(38-46cm)1.0"(2.5cm) Note: Before you order, be sure your dog is suitable for this size (That's very important) Please feel free to contact us if you have any questions.Thanks a lot!