There isn't much to say about this rim-clamp microphone holder. It sits well on the rim of my toms, and the balance between usefulness and price makes this a great purchase. There are more expensive ones that have marginally better quality, but this will take you 90% of the way for a third of the price, or less.
There's not much to argue. Get them, use them, and then you can move on to focus on something else, as you have one less problem to solve!