What's 304 stainless steel?
the 304 number means the rank, generally speaking, the common stainless steel you use in your home items are 201and 304
304 stainless steel has super strong rustproof ability, very sturdy and durable, compared with those baking finish metal s hooks, higher level than them, you would not worry 304 will rust, or bent, not enough to hang your bird feeders or garden items.

How to care
1.Wipe, remove the dust, keep clean and dry

USE TTENTIONS
Keep your bird feeder hooks from salt / sweat / sea water / sea breeze / soil, for they have Chloride ion, it will let the stainless steel quickly rust if long-term touch. In general, stainless steel does not rust, unless you use improper.