High Quality Material: Whisk ball is made of food grade 304 stainless steel, durable and healthy, use the ball with shaker bottle or cup,STURDY THAN OTHERS - STRONG & DURABLE,our whisk is sturdy and reliable. You dont have to worry about them rusting. Size: The diameter of protein shaker ball is 5.2cm/2 inches, the height is 4.5cm/1.78 inches, suitable for most of bottles with cover FUNCTIONAL AND USEFULL: Blender whisk ball are used to mix your protein powders, healthy greens, milkshakes,tea with milk and diet shakes,etc Easy use: Just put the stainless ball into the bottle and cover, then shake it uniformly, your nutrition dissolve more totally and quickly in bottles Easy to Clean and storage: Whisk ball is easy to clean,just rinse the water or put it in the dish washer,Stainless Steel whisk set is rust resistant, non stick and easy to clean.A must-have for home cooks and restaurant chefs. Pack of 2 Stainless Steel Protein Shakers, Stainless Steel Blender Mixing Ball Protein Mixer Sport Fitness Shaker Protein Shaker Bottle Cup Wire Whisk for Protein Blended Drinks Specifications: Material: Stainless steel Diameter: 5.2cm/2 inches Color: Silver Quantity: 2 PCS Features: 1. Made of food grade 304 stainless steel, durable and healthy 2. Used to mix your protein powders, healthy greens, milkshakes,tea with milk and diet shakes,etc 3. Just put the stainless ball into the bottle and cover, then shake it uniformly Package:2 PCS X Whisk Balls