Glasslock Oven Safe Glass Container 9-Piece Set is designed for storing, freezing, heating and serving food. High-quality oven safe glass food storage containers with easy open and clip shut BPA free plastic lid. Made of tempered glass that has a higher shock resistance than normal glass. Water-tight and air-tight red lids with an integrated silicone seal, make these products leak-proof, while their tempered glass makes them scratch, stain and odor resistant. Features sloped sides for better hand grip and ease of stacking. Top rack dishwasher, freezer, fridge safe and oven/microwave safe without a lid (remove lid before microwave use). Oven safe to 230 degrees Celsius. Set includes 1 x 485 ml rectangular containers, 2 x 970 ml rectangular containers, 1 x 1.7 liter rectangular container, 1 x 190 ml round container, 1 x 450 ml round container, 1 x 850 ml round container, 1 x 400 ml square container and 1 x 900 ml square container. Smart design and stackable rectangular oven safe containers Made from shatter-resistant tempered glass Easy open and close snap lock lid system Features sloped sides for better hand grip and ease of stacking Silicone gasket lining each lid ensures a 100 percent airtight seal