Product Review

Small size: mouth circumference 4.5'', neck circumference 4.7''-10.0'', mouth height 1.8''.
Medium size: mouth circumference 6.1'', neck circumference 5.5'' - 13.4'', mouth height 2.4''.
Large size:mouth circumference 6.5 '', neck circumference 6.7''-15.7'', mouth height 3''.