As a member of Tomoson.com I was able try out Sprout Cups 4oz size. They have many great quilities.
- 00% BPA and PVC Free - interlocking cups lock to each other AND to their tray.
- Dry erase function to easily record contents and date (erase prior to Microwaving)
- Microwave, dishwasher, and freezer safe
- Screw on lids to keep food fresh without popping off
- 2 and 4 ounce cups, tray, and dry erase marker
You can find them on Amazon
My thoughts--- there are many storage containers out there. This brand is nice because the different sized can inter lock with each other. I like the larger sized container as the child gets older they make for great trail mix holder or other snacks on the go . While there is a nice dry erase spot...when you wipe one label off there is still a faint print on it. Also when storing in the freezer don't fill to top. Lids will pop off.
I believe for the price this product gets a 4 out of 5 stars.