Nanodisks with uniform height and tunable diameter on the nanometer scale were constructed without any lithographic processes. The disks consisting of an amphiphilic triimide module were formed at the air-water interface in the presence of cyclen as an aqueous shackle and transferred onto substrates by the surface-touching (Langmuir-Schaefer) technique. The 3 nm height of the disks was maintained, whereas the diameter was tunable from 45 to 74 nm by varying surface pressures.