Yes, this is a "as seen on TV" product, I found my at Target, but they are incredibly useful for packing nutritious food portions.
This is 48 piece set (49 if you count the spinning storage caddy, which is handy to keep things organized). The containers are 8 oz, 16 oz & 24 oz, (8 of each) and the lids fit all sizes.
These containers have made it to prepare lunch & snack items in advance, then I just grab on my way out the door during the week.
The 8 oz is great for packing 10 honeydew melon balls, a cup of cottage cheese or yogurt, etc. I use the 16 oz to pack coleslaw, etc. I don't take items that need to be heated in the microwave to work in these however.