Features:

• Reusable, rigid plastic containers with the Snap 'n Seal closure
• Holds 2.5 cups
• Perfect for storing leftovers, taking your lunch to work, organizing household stuff, and giving away as gift containers
• Dishwasher safe
• Great for freezing: helps to protect food from bitter freezer conditions and to keep it ready for quick reheating

Editor Reviews:

Product Description:
* Locks tightly so food stays fresh * Sturdy and affordable * Reusable and disposable * Unique Snap 'N Seal lid * Go from the freezer to the microwave to the dishwasher * Transparent plastic containers with transparent blue lids * 20-oz capacity * 5 per package

Rating : - Not what is advertized on Amazon.
The package did not contain 30 plastic containers as advertized by Amazon, only 8 containers, if memory serves me. However the supplying company gave me a full refund of the purchase price and let me keep the containers that I did receive.