They’re made from a mix of materials, including wood, bamboo, PET (polyethylene terephthalate), and various plastics.
Clear or transparent caddies let you see contents at a glance, making it easy to identify stored items without opening the bin.
Common options include snap-on lids and color-accented latches, plus multi-layer boxes that use latches to lock layers and removable trays for access.
They often use expandable hinges or arms to fit different tubs, multiple open compartments for supplies, and perforated bases so water drains naturally.
Most recommend spot-cleaning or wiping for plastic and bamboo items; at least one PET bin specifies hand wash.
Some plastic bins explicitly list safety/material labels such as "BPA-free" and "phthalate-free."