These Shaker Bottles for Protein Mixes has a Solid Twist Lock Lid Design to Reduce the Chance of Breaking or Leaking After Multiple Uses Than Normal Snap Lid Shaker Cup. These Protein Shaker Also Include a Safety Lock on the Protein Shake Bottle, Just Open It & Flip It Back Till the Very End, & You Wont Worry About the Lid Hitting Your Forehead or the Lid Flip Back While You Are Drink Anymore. These Shaker Cup Have a Removeable High Qualty Rubber Ring to Ensure No Leaking. the Screw Thread of the Lid & the Cap Also Have a Special Design to It, the Easy Access Feature of the Lid Make It Locks & Unlock Itself Easily Up to Two Turns, & the Cap of the Protein Powder Shaker Bottle Will Always Towards to the Scale Side. Minimum Quantity: 120