I have been curious lately about pacifiers. I ordered a NUK 5 from babypants just so I can try it and see how I like it. Before it gets here I went to Wal-Mart tonight and bought a 2 pack of pacifiers that the pack specified are for 18-36 mth. kids. Is the NUK 5 bigger than the ones that I bought tonight? I don't know a whole lot about pacifiers, so please forgive me for this possibly simple question!