DescriptionThis is a needle valve, which is made of high-quality materials, durable and can be used for a long time. It can be used to open and close propane. If you need a long time of stable control, it is best to use with a regulator. Needle is designed to regulate flow to instruments or other industrial applications.Features-Color: Golden. -Material: Metal. -Size: About 4.50X4.50X2.60cm/ 1.77X1.77X1.02in.- High-quality materials and fine workmanship make this needle durable and can be used for a long time. - If it leaks, replace the inner O-rings with pliers, or suggest sealing the ends with a bit of tape. - It can be used to open and close propane. If you need a long time of stable control, it is best to use with a regulator. - Needle is designed to regulate flow to instruments or other industrial applications. - This needle is convenient to install and easy to detach.