Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: What are the diameters of the cone (not spout)  for each of these?  Need them to fill oil into a narrow oil pourer and spice in small  spice jars.
Document: I really like my mini funnels. They have long stems to fit into the area that I need to fill, especially salt and pepper shakers.
I received an inquiry on the size of the funnels. Unfortunately I do not know, I left them at camp - I use them to fill a cooking oil squeeze bottle - which needs the smallest funnel to fit. I hope this is helpful to the person who sent me the inquiry.
These are great! I have to fill empty medication capsules with a powdered medication for my dogs and this makes it so easy! I also needed another of the sizes to fill my aroma oil burners and could never locate the funnel that came with it. These are chained together so I no longer have that problem!
These are great for filling very small jars. Have used them a lot. I like that they are metal so no plastic chemical leaching either.
These are the best funnels for their price to use for hot candy making! I used them for the first time with molten hot lolly pop mixture which I needed to get exactly into tiny jewel molds. These worked wonderfully! I did not burn my hands like I normally do. Plus I could work much faster which helps a lot when dealing with hot candy! The three different sizes are great to choose from when you need something very small, medium small, or medium!
I bought here thinking they were smaller than they rely are.I kept these, despite my mistake, becaus they're great little funnels. They immediately replaced the plastic kitchen funnels we used. The smallest one is not really quite small enough to use for filling a perfume atomizer, but it is rather small. The largest one is just right for filling tabletop olive oil and vinegar dispensers.Much higher quality than the old plastic ones, and they'll stay put in the dishwasher basket rather than flying all around inside.
Use these to xfer spice from bulk containers to lighter weight bottles and spice mills - very nice to have the 3 different sizes.
The photos make it seem like these are normal sized funnels, but they are teeny tiny funnels to be used for what? ?Maybe to fill little 1 inch salt shakers? Very deceptive. Not worth the price at all.Feeling ripped off...
I got these to use for home brewing projects because they looked solid, versatile, and easy to clean. They're everything I hoped for. The three size options cover almost any filling need, from big bottles to tiny flasks. The handles keep the funnels steady. Simple enough. Buy with confidence.
I began using my funnels as soon as I received them. They are great for pouring thin liquids, and the largest one is fine for more viscous fluids (like castor oil). They clean easily. They are not heavy-duty funnels in that the handles will bend if manipulated too much. However, the handles are long enough to keep hands away from what you're pouring; I find them invaluable!
Answer: The smallest is approximately 1 1/2" across with spout the size of a small drinking straw. the largest is  2 3/4" across and I can fit the end of my little finger in the end of the spout. The middle funnel is 2" across and you can put an exacto knife handle in the spout.  Hope this helps.  They are stainless steel and they are just what I had been looking for.