Review on 🥄 Versatile Silicone Collapsible Funnel Set of 4 – Perfect for Filling Water Bottles, Transferring Oil or Liquids, and Cooking Tasks – Food Grade, Foldable Kitchen Tools by Trevor Palmer

They are sturdy and look very good quality. If you are using runny liquids this may be fine, but with thick liquids some of the liquid will not move freely up the sides of each funnel due to the rounded protrusions. Maybe that's fine for most applications, but if you're measuring things accurately it's not useful. I sent mine back because of this - I should have thought about this thick liquid issue before I bought it. The seller was very friendly and left me.