1" collars are too wide for dogs under about 17lbs.
Collar sizes: Small 9"-12", Medium: 12"-18" or Large: 16"-22"
If you would prefer this collar in a Martingale just purchase this listing then click on link below and also add the martingale upgrade to your order.
So sorry, NO matching leash since trim is so limited.
More dog collars here - https://www.etsy.com/shop/fairytailcollars?ref=si_shop