These clear, stainproof glass containers feature a space saving, nesting design. Durable silicone seal provides airtight and leakproof storage. It is ideal for serving and storing, and safe for microwave cooking. Glasslock Set Includes: 1 round containers (3.1cups/ 733mL), 2 rectangular containers (1- 6.3cups /1.5L, 1- 3.5cups /828ml), 2 Square containers (1- 3.3cups/781ml, 1- 1.5cups/355ml), 5 matching lids, Ideal for serving and storing