ProStak®

The BlenderBall whisk inside actually mixes my shakes smooth with zero clumps, even when I’m in a hurry and just give it a quick shake. The twist lid seals so well I’ve tossed it in my gym bag sideways without a single drop leaking.

The Twist n’ seal lid locks down tight enough that I stopped worrying about spills in my gym bag, which is a huge win. The BlenderBall whisk blends my protein powder smoothly with no clumps left at the bottom, and the whole thing feels sturdy enough for daily use.

The BlenderBall wire whisk actually does its job—no more clumpy powder stuck at the bottom, even with thick shakes. I've tossed this in my gym bag every day for two weeks and the lid hasn't leaked once through all the tossing.