They come in handy, I just wanted the smaller one to pour Gatorade powder into bottles and the kind of step design in the when they’re open catches a lot of it so it won’t slide into the bottle but for liquids I’m sure they’re great

For the price you get what you get. They work they just kinda hard to close back up

I've tried to use two of the sizes and neither worked for what I needed it for, the hole was too small on the blue one and the green one was too big. Both the red and blue have about the same size opening which is small, and the green is much bigger. They were cheap enough not to send back.

Because they are collapsible, they are not smooth and therefore you you have shake substances down that are not liquid.

These are okay.I have tried liquids and solids (sugar) and have to support the funnel when it’s in use. The 2 smaller ones are difficult for pouring sugar. Seems to build up static with the silicon and you have to knead the funnel to get it thru.