It's a metal shaker, it functions, looks good, what more could you want?

No problem mixing. Cleans well. No weird smells after use a few times

Very aesthetically appealing (looks nice) performs as well as it looks, mixes clear whey, normal whey, and bcaa very well, haven’t tried on anything else yet  Goes Well With: Impact whey, clear whey, bcaa 

Great shaker, sturdy and sleek look, lightweight despite being strong. Bought to avoid plastics mixing with my water on hot days, the steel shaker is the best option for this. 

I was skeptic at first as I’ve never seen “metal shaker” flavoured protein. Once I got it I wacked it in the blender. It took a while to grind down and might’ve damaged my blender but once it was mixed in with my milk I tucked in and I was very impressed with the flavour. The metallic taste was to die for and the burn it gives your throat is sensational. 10/10 Goes Well With: Milk, water, peanut butter