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Second link is wonky. It seems like a random search result.Amazon has some faux-leather cases that hold 400 chips plus cards/buttons/accessories, along with several other sizes in a similar line. They're sold by George & Company (who also sell the infamous "LCR" dice game and who own the MD-75 Flowers clay chip mold) but apparently some of them are also branded "WOOZZONG" which is probably either the Chinese manufacturer or a Chinese middleman trying to cut George&Co out of the loop on Amazon.
Here's the 400-chip case: https://www.amazon.com/Capacity-Poker-Chip-Card-Case/dp/B0052YGKY4/
Here's some other sizes in the same style: https://www.amazon.com/s?k=George+&+Company,+LLC+case
Some only hold chips, some remove one row separator to swap out 100 chips for cards and accessories.
I have the 300 chips-only case and it's okay. Nothing to write home about, but nothing wrong with it. It looks nice. It didn't cost much.
"George & Company, LLC case" - 1000 results