"Good Dog" Collar Sizes?

I'm getting ready to go ahead and order the good dog collar (plastic prong) once my check goes through. Skye's neck is about 13 1/2". The sizes are:
Small adjusts up to 15”.
Large adjusts up to 21”.

Maybe this is sort of obvious, but should I just go ahead with the larger one? Or stick with the smaller one?? I wish they were sold in stores-I would love to try it on/try it out.

Just to add-the small one has smaller links, and the big one has larger links. I'm looking more at it, and I can probably adjust the large one down to her size by removing links? She is Dalmatian-ish size, and has a very thin pointer ish neck.

I have a metal, not plastic, prong collar and you can take as many prongs out as you want in order to make it fit. My guess would be to go for the larger one, but I'm not sure if you can adjust it the same way with the plastic ones. Actually, I didn't even know you could get them in plastic so maybe I'm not the best one to answer.....

http://www.jbpet.com/shopping/images/1850121.jpg
That's a good dog (plastic prong). I suppose if you can add links you should be able to take them off? I could get a metal one, but I'm curious as to how these work.

Quote:

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Originally Posted by areias

http://www.jbpet.com/shopping/images/1850121.jpg
That's a good dog (plastic prong). I suppose if you can add links you should be able to take them off? I could get a metal one, but I'm curious as to how these work.

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hmm never saw those before, they look interesting..may have to look into that. I would imagine you'd be able to take links out...I hope someone else can be more helpful! :o