Review on Tumbler Lid - Yeti Rambler/Tumbler Compatible - Spillproof Replacement for Ozark Trail Lids - Magnetic Slider Cover - Black, 10/20oz, 2Pcs by Martin Dosunmu

I have ordered four different types of magnetic closures for cups from other manufacturers. We bought cups to give out to customers and the lids that came with them quickly turned out to be plastic and cloudy. We bought these magnetic clasps to replace the cheap ones. Of the ones I've ordered to test, this one has the best magnet "clicks" back and forth and does its best when the mug tips over. The spout that the drink comes out of (aka the hole) was the largest of the four we ordered. Very happy with the product and happily shipped to customers. I've spent too much time comparing.