Pyrex® 4杯圓形塑膠蓋，深藍色

The dark blue color makes it easy to spot in my fridge among all the clear containers. It snaps on firmly and keeps leftover soup from leaking, which was my main worry with a glass dish.

Finally, a lid that actually seals tight on my 4-cup round container and doesn't warp in the dishwasher. It snaps on securely with a satisfying click.

Snapped right onto my old 4-cup round dish and the seal is tight enough that soup doesn't leak in my lunch bag. The blue is a nice change from the clear lids I keep losing.