Optimum NutritionON Shaker with Stainless Steel Mixing Ball, BPA- and DEHP-free, Dishwasher Safe, Black, 600 ml

great for shakes I like the spring it makes it easy to mix the contents, sturdy cup and easy to wash

Feels good quality, like it will last and mixes my protein powder well, I would recommend

Does the job but print cam off after few washes even though not used dishwasher.

Bottle is great, doesn't leak at all despite what some reviews may say. Steel mixing ball works incredibly well, I used to use a cheap blender to mix my whey with milk but this bottle mixes really good.

The bottle feels sturdy enough and has been fine for regular home use. It is easy to clean by hand, although, the writing on the side came off the first time I put it in the dish washer. I use mainly for protein shakes and the steel ball helps to break up and lumps.

Good bottle and shaker. Sadly they cheaped out on the side print/logo as it all smudges off after the 9th or 10th use

Decent shaker, doesn’t leak, easy to wash and use.

The Optimum Nutrition Protein Shaker is a solid choice for anyone in need of a reliable and affordable shaker. It feels sturdy and well-made, so I expect it will withstand regular use. I particularly appreciate how easy it is to clean – a quick wash by hand and it's ready to go again. It's a decent size, more than enough for my regular protein shakes and the little steel ball helps to break up and lumps making it easy to use.While the plain black design is sleek, it can be a bit tricky to see the liquid level inside. However, this is a minor inconvenience compared to its overall functionality. I've had no issues with leaks, even when giving it a vigorous shake, and the flip cap keeps everything secure, I do hold onto it tho, just in case! If you're looking for a good value, no-frills shaker that does the job, the this a good option.