Party in the USA Martingale Size:Medium Our Underground Fence collars are

Our Underground Fence collars are designed with two heat-sealed holes

and sewn on polyester and nylon ribbons

Celebrate their uniqueness while keeping your dog warm at home or on the go

These training leads offer longer lengths for greater reach and flexibility

See size chart below

Party in the USA Martingale Size:Medium Our Underground Fence collars areOur fun and fashion infused Martingale collars are a gentle way to have control over your dog. Perfect for dogs that pull or easily slip out of their collars. Martingales work by creating an even tension around the neck to avoid neck and throat injuries. Like all of our collars, they are made from high tensile strength nylon webbing with sewn on polyester and nylon ribbons, and are stain and fray resistant. They are designed to last a lifetime! PLEASE