Promixx | The Original Vortex Mixer-Pink Bodybuilding Warehouse Promixx | This Innovative Addition To The Shaker Market Provides A Hassle Free Method Of Mixing Your Powdered Supplements. The 9, 000Rpm Motor And Specially Designed Core Creates A Vortex To Effectively Blend Whey Proteins With Liquids Whilst Preserving The Delicate Protein Structures. Key Points: - Available In A Variety Of Colours - 9, 000Rpm Motor - Specially Designed Core - 650Ml Tumbler Please Note - Batteries Not Included | Promixx - The Original Vortex Mixer-Pink