Used in our public air compressor shop. These are pretty durable! They often fell onto concrete and were hit by cars and trucks. At night people cut off the end of the air hose to steal them (air cartridges) for personal use, so we look for inexpensive items when the items are "temporary/disposable". Because people often deflate their tires slightly to drive on the beach, they need to change the air to get back on the roads/highways safely. This is a great choice for a shop or public space.