Pet Expert's Nylon Dog Collar with buckle can be used for various activities. The nylon materials are water proof, so your beloved dog can play in water or walk under the rain and it will not affect the collar.? Buckle is stronger, safer and more secure than any other side release buckle. Engineered with 4 locking points (twice as many as regular buckles), the Buckle snaps into place with an audible "Click" to indicate it is fully locked in. The collar is soft and easy adjustable. It will not cut into the skin or rub it! Make your dog feel comfortable at all times!