Total size
Neck size for
weight
Fit letters
XS 1.5*30
20-28cm
20g
10mm
S 1.5*37
26-32cm
30g
10mm
M 2.0*42
28-37cm
50g
10mm
L 2.5*51
35-45cm
60g
10mm
NOTE: this price not including letters&Charms


Matching charms and letters for this link:

Charms link:

http://www.dhgate.com/colorful-10mm-rhinestone-dog-pet-cat-charms/p-ff8080813bdf48c4013bf03a27ce3d9b.html

Letters link:

http://www.dhgate.com/personalized-name-a-z-diy-slider-letters/p-ff8080813bdf4af4013bf0232c1f251e.html