Review on Sduck Replacement Blender Professional Blenders by Rusty Smith

I needed a mug lid for my Ninja Fit mug but didn't like the flip top lids as I don't usually travel with it (so I don't need a tight lid) and I don't like to drink from it and I wash she doesn't like. I also don't like sipping my drink on the bare rim of a cup as it's uncomfortable and annoying, I always splash on my glasses when I sip. Thankfully, these simple lids fit the bill nicely. They thread perfectly onto the 16 oz Ninja Fit cups. Be careful not to over-tighten them though, as the spacers are quite soft and a bit loose, and also cheaply made. Otherwise, they're inexpensive replacements for the bulky flip-top covers that come with the Ninja Fit.