My shaker arrived with one of the chambers separated and the contents loose in the product bag. Luckily, as it was (mostly!) contained in the bag, I was able to pour it back inside. As many have pointed out on other Millenium shakers, there needs to be a little more glue applied to the seals on the product overall. I would suggest that glue could bind the two halves of the shaker together as well. The included rubber band wouldn’t be the only thing holding it together then.
Sonically, these are great and a worthwhile purchase for its price. However, a few slight adjustments would make this a 5/5 product