This is an excellent small diameter Siamese hose made by one of the leading welding companies in the USA. It's very high quality, very flexible (so don't step on it during use or you could pinch the flow) and has high quality brass fittings on each end of a standard sized hose. I'm glad I bought it and I'm pretty sure if you don't need a lot of flow for a BIG cutter or a Rose Bud tip this is probably all you need in a lightweight package. I use mine on my set of Victor portable lights. Enjoy!