The set includes three 12 oz glass jars (approximately 3" diameter x 4" high) seated on a bamboo tray that measures about 11" wide x 4" deep x 5" high.
Jar bodies are glass. The bamboo set uses bamboo for the tray and lids (lids noted as enhanced with silicone). Stackable racks are made from metal and engineered wood (some listings describe the wood as plain wood).
Yes — the jars are described as airtight. Listings note that the lids are enhanced with silicone to provide a reliable seal that helps maintain freshness.
The listing shows a bamboo tray plus three 12 oz airtight glass jars and three bamboo spoons included with the set.
Each shelf is described as supporting up to 33 lb. Large shelf dimensions are listed at about 7.7" D x 11.7" W x 6.2" H, with some listings including a slightly smaller nesting shelf around 7.3" D x 11.7" W x 5.4" H.
The organizers are adjustable: they can be stacked, nested, arranged in an L-shape, or used as separate single shelves so you can adapt them to different layouts and spaces.
Care instructions are not specified for the jar-and-tray listing. For the stackable shelves, listings note cleaning guidance such as "Clean With Water."
Product details do not clearly specify any assembly for the jar-and-tray set. The shelf organizers are described as quick or easy to assemble, with some listings noting easy setup with clear instructions or tool-free assembly.