This polka dot bow tie pet collar is so cute. It is sized 1.5-2.5cm and is made of faux leather. Sizes are as follows:

XS size : Fit for 8~11 (1.5CM Wdith *30CM Length)
S size : Fit for 11~13 (1.5CM Width *37CM Length)
M size : Fit for 12~14 (2.0CM Width *42CM Length)
L size : Fit for 14~18 (2.5CM Width *51CM Length)