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Adjustable Nylon neck collar with hybrid buckle, make it even lighter to wear.
Buckle is made of plastic and stainless steel metal
Different 3 sizes will be suitable for your puppy.
S: 21-36cm (8.5-14'') 1.5cm (5/8'') width
M: 25-42cm (10-16.5'') 2cm (3/4'') width
L: 35-57cm (13.5-22.5'') 2.5cm (1'') width
Easy to take on and comfortable to wear.
Please see pictures for exact measurements.