Chihiro Iwasaki Bento Box Materials: Acrylic, Silicone, Plastic Microwave safe, Dishwasher safe Capacity: 530ml / Country of Origin: Japan Size: Width 18.6 x Depth 10.8 x Height 6.2cm Dishwasher: Yes / Microwave: Yes The dome-shaped lid allows you to pile up side dishes, so the ingredients are not pressed by the lid, keeping the fluffy look and deliciousness when served. The lid has a secure 4-point locking system for a firm hold, and a leak-resistant packing on the back of the lid. Dishwasher safe, microwave safe (remove the lid), silver ion antibacterial treatment, 530ml, perfect for women. SIAA (Antimicrobial Product Technology Council) certified mark JP0122581X0007H / Materials: Lid = AS resin, Body/Fastener/Divider = Polypropylene, Packing = Silicone resin