Two layers of durable high-quality nylon web make this one of the strongest leads we offer. Always a perfect fit, our adjustable personalised dog collar snaps on and off with ease; there's never a loose collar end, no matter the adjusted size. Both feature sonic-welded seams, which are 80% stronger than stitched seams, and smooth, tapered edges. Heavy-duty hardware increases security. Ideal for growing puppies. Made in USA.