High Quality:Made of Nitrile (NBR) 90 shore material,has excellent oil resistence as well as good resistence to weather and tearing
Multi Size:You can get a good selection of 12 different sizes o ring that come in handy,can meet almost all your needs
Wide Application:Use for dive hoses ring, diving,dive gear equipment etc.90 Durometer Nitrile is the recommended material for your scuba needs when you are not diving with a Nitrox mixture