X-Small-0.4inch(1cm) width 4.4-2.8inch(11*7cm) height 7.6-9.2inch(19-23cm) adjustment Small-0.4inch(1cm) 5.2*3.6inch(13*9cm) 9.6-12inch(24-30cm) Medium-0.6inch(1.5cm) 6.2*4.6inch(15.5*11.5cm) 12.4-13.6inch(31-34cm) Large-0.6inch(1.5cm) 9.6*6.8inch(24*17cm) 16-19.6inch(40-49cm) Special occasion or not...have your pup looking stylish in one of these bandanna collars. Everyone will for sure be complimenting your dog.