Spring thingy, wire ball, whisker ball, mixer thing, scrambler, little whipper, and the magic ball. Though it answers to many names, it's actually called a Blender Ball. Made of surgical-grade stainless steel, the Blender Ball wire whisk makes short work of your mixing needs. Simply drop the ball in with your ingredients and shake. Its variable speed action is up to you! Gently swirl it to stir, or shake it fast to whip it up. The ball is designed to remain in the cup until you've enjoyed the contents.

No Ordinary Bottle.
Function or style? Too hard to choose? Now you can hold both in the palm of your hand. The Blender Shaker Bottle is as functional and effective as it is unique:
Blender Ball mixer inside 
Secure screw-on lid 
Wide mouth makes it easy to add ingredients 
Large drink/pour spout 
StayOpen flip cap won’t close on your nose 
Gripper Bars make it easy to hold 
Embossed ounce and millilitre markings 
Easy to clean—dishwasher safe 
20 or 24-ounce capacity 
Available in a 4 colours 
Fits in most car drink holder