Essential products USA via Amazon has 24-Piece JoyJolt JoyFul Borosilicate Glass Airtight Food Storage Containers w/ Lids for $35.95 after clipping the $4 coupon on the product page. Shipping is free.

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Features:

• 12 Airtight Food Storage Containers With Lids
  • 4x Rectangle Containers:
    • 35oz (8x6in)
    • 21oz (6.75x5in)
    • 2x 12oz (4.2×5.5in)
  • 4x Square Containers:
    • 27oz (6in)
    • 17.5oz (5.2in)
    • 2x 11oz (4.3in)
  • 4x Round Containers:
    • 32oz (6.75in)
    • 21oz (5.9in)
    • 2x 13.5oz (5.2in)
• Containers can go from freezer to oven without breaking
• All Temp Food Containers (containers only, not lids): Made from Borosilicate Glass: Dishwasher Safe, Oven Safe to 1040DegF and Microwave Safe containers
• Both lids and containers are fridge safe and Freezer Safe to minus 104DegF
• Airtight silicone seal and secure hinge clips