Sizes:
6inch=
4-6inch neck  
6inch length neck to tail.
Belly is adjustable.
8inch=
6-8inch neck
8inch length neck to tail
Belly is adjustable
10inch=
8-10inch neck
10inch length neck to tail
Belly is adjustable
12inch=
10-12inch neck
12inch length neck to tail
Belly is adjustable
If none of these sizes fit your pet we can custom make to sizes you send