Shaker Balls 7 Pcs Protein Shaker Ball Plastic Blender Ball Replacement Shaker Ball for Shaker,Drinking Bottle Cup-4 blue + 3 purple

1.Easy to Use: Just put the shaker ball in the bottle, shake the bottle fully, and you can get a mixed drink
2.Perfect Size: The blender ball , perfectly matching the shaker cup, and suitable for most bottles
3.Material:Protein mixer is made of food-grade PP, which is safer
4.Easy to Clean :The vibrating ball is easy to clean,just rinse it with water or put it in the dishwasher