Bests & Worsts Reviews from Amazon

I only use the largest funnel for general kitchen uses, I find the others to be too small. Approximate sizing: Large: 3.75 inches / 9.5 cm diameter at mouth --- 1/2 inch / 1.4-1.8 cm taper diameter at stem Medium: 3 inch / 7.5 cm diameter at mouth --- 3/8 inch / 1-1.5cm taper diameter at stem Small: 2.5 inch/6.5cm diameter at mouth --- 0.25 inch/0.6-1cm taper diameter of stem I just found the Set of 4 General Purpose Plastic Funnels. Assorted Sizes Nested Funnel Set covers an even greater range - from smaller to larger than this set. If you need small funnels for filling tiny bottles and vials, you may wish consider the Norpro 3-Piece Stainless Steel Funnel Set that goes even small and has a fixed width stem that is slightly longer for each.