Because the lid is made of highly-transparent acrylic, the contents of the bin are easily visible. Developed especially for this bin, the lid utilizes shihosan, a traditional kiribako lid-fitting technique that makes the bin airtight (as well as keeping the lid from popping off in the case the bin tips over). The lid also hooks onto the edge of the bin, a convenient feature when refilling. What’s more, the reverse side of the lid contains a magnet to which one can attach a measuring cup so that the cup does not become buried in the rice.