RSVP InternationalEndurance Canning Collection Non-Reactive 18/8 Stainless Steel, Dishwasher Safe, Funnel, Wide Mouth, 2-3/4"

Will this work on REGULAR & WIDE mouth canning mason jars (Ball & Kerr) ?

What is 18/8 stainless steel mean?

is this all one piece or is the bowl separate and then attached to the handle? welded, riveted, glued???

Hi, how wide is the top of the funnel? Not the bottom/neck (which I believe is 2.75"), but the top/receptacle? Is it wider than 5.5"