The model can be used to mix beverages inside a small bottle or can.

If you want to, you can also use the smaller one as a keychain to always have on on hand :)

It should fit every standard sized can and bottles as small as a Coke 0.33l.

Sizes:

Inner diameter (thinnest part): 1cm

Outer diameter (thinnest part): 1.3cm

Small funnel inner diameter: 3.3cm

Big funnel inner diameter: 4.67cm