Stainless steel is plated with brass firstly and then nickel secondly on surface, so the garden hose fittings will be slightly yellowed on surface which is normal color.
Corrosion resistance than pure brass material, high temperature ductility and low magnetic permeability
Fit most common garden hoses faucets with 3/4” GHT Threaded
Save your time: easy to install and disconnect by one handed