Review on 🍹 Blendin 2-Pack 32oz Cups with Sip N Seal Lids, Compatible with Nutri Ninja Auto-iQ 1000W and Duo Blenders by Steve Guillen

I bought these two packs a year ago and mostly only use one of the cups so had the other as a spare. Backup when I need it. About a month ago, the main cup I was using started leaking through cracks in the bottom of the cup which, as mentioned, formed along the internal ribs. I then started using a different one. About a month has passed and this one is already doing the same. Sounds like a design or material defect. They're fine if you need larger mugs, but given that plastic will likely last forever, I expect they'll be more useful.