Our packages are designed to provide maximum protection to the product from mechanical damage and logistical jostling. Additionally, the package is labeled to provide important details. For us ensuring distribution of order on time is not a big thing is easy, as we have a dynamic logistic system that empowers us to reach patrons within the promised time. Features : Wide variety of nipples available Nickel plated brass body Male (R) taper threads with thread sealant coating Male parallel threads with sealing washer (M5 only)