Specs

Size Length Width Thickness   Example
S 35 - 43 CM 2.5 CM 0.02 CM Terriers
M 40 - 48 CM 2.5 CM
0.02 CM		 Spaniels
L 45 - 52 CM 2.5 CM
0.02 CM		 Pit Bulls
XL 52 - 60 CM 2.5 CM
0.02 CM		 Mastiffs

 *The breeds above are just suggestions and may not be accurate to size.