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.