Folding Kitchen Funnel Large Funnel Magic Mushroom

What is the diameter of the stem? I’m tryin to figure out if it will fit a specific bottle

Is it silicon like the title and description or is it silicone

is this sticky? can i use it to pour dry spices?

Does this come in the “Magic Mushroom” box packaging as shown? A review said it doesn’t (it was just in a plastic bag).