Awesome shaker cup and mixes very well, it has a good mixing mechanism, is a "spring" like attachment that is is on a plastic Rod, the rod attaches to the lid and it is irremovable it you do not like it. The mixing is made out of the same material as most higher quality thicker wire balls. Sturdy plastic cup and top latches well. I would give it 4.5 cause no handle so on this I would round up to a 5! You can tell by the picture there was not handle and that is why I am rounding up, I knew it didn't have one of course!