This Space Electric Shaker is Made of Food Grade Tritan Material, Free of Bisphenol a & Odorless, Making It More Reassuring When Mixing Proteins. the Mixing Cup has a Large Capacity & a Graduated Body, Which Can Also be Used as a Measuring Cup. It is Very Suitable for Your First Cup of Protein Before Exercise, Without Worrying About Water Content. Moreover, It is Leak Proof, So There is No Need to Worry About It Getting Wet on Your Documents or Mats. the Stirring Speed Reaches Up to 7000rpm, with a Unique Stirring Design That is More Delicate & has Excellent Mixing Power, Making the Milk Shake Smoother & More Delicious. It is Very Suitable for Protein Shakes, Pre Exercise & Post Exercise Beverages, & Dietary Substitutes. It Can be Operated with One Hand. Minimum Quantity: 100