Country Brook Petz | Premium Nylon Dog Collar with Metal Buckle (Extra Small, 5/8 Wide, Black) Premium polished aluminum exterior for a brilliant mirrorlike finish. Stainless steel pin &amp; spring ensures a strong, durable secure lock. The curved countour of the buckle makes it more comfortable to wear than a flat buckle. Our laser etched logo adds to the premium look and feel of this exquisite collar. Made from silky, durable nylon webbing. Nylon collars are soft and sleek to the touch with a touch of sheen. Nylon webbing is a heavy-duty material that can take a beating. Thick BondedB69 Nylon thread won&#039;t fray or break as easily as lighter threads. Pressure points are box-stitched for superior durability.