kˈɔɪnz æz lˈɑːɹdʒ æz jˈuː.ˈɛs. kwˈɔːɹɾɚz kæn ˈiːzili biː lˈeɪd flˈæt ɐɡˈɛnst ðə vˈælɪz, wˌɪtʃ mˈeɪ biː æz dˈiːp æz ɐn ɐdˈʌlt hjˈuːmən fˈɪŋɡɚ.
Coins as large as U.S. quarters can easily be laid flat against the valleys, which may be as deep as an adult human finger.