Tired of finding clumps of powder in your protein shake or remnants stuck in the corner of your shaker? Thanks to ShakeSphere's revolutionary new patented shaker, Tumbler Shaker, you can now enjoy an innovative design that makes mixing easy! Features Easy to clean BPA free - no harmful chemicals! Freezer safe No mixing balls or mesh needed a sliding lid with a silicone seal to reduce spillage an oversize leak proof thread Men's Health Fitness Awards Winner 2019 - Best Shaker Benefits Featuring a secure slide cap with a silicone seal and an adjustable finger loop for convenience and security, the ShakeSphere Tumbler Shaker, described as the world's best-patented shaker, is designed to take the hassle, cleaning, and wastage out of supplement shakers! If you're an experienced supplement taker, you'll be likely well versed in the tedious task of cleaning your shaker, mixing balls, gunky grids, and getting the dried remnants out of the corners. However, thanks to the invention of the ShakesSphere Tumbler Shaker, you can now enjoy a convenient shaker that's designed with convenience, practicality and versatility in mind. So, how does it work? ShakeSphere eliminates the need for mixing accessories, owing to its patented capsule shape that has been carefully designed to do all of the mixing for you. The centrifugal force helps to rapidly break down particles and supplements in a flash as the mixture passes around the hemisphere base at speed when shaken. In fact, you won't have to worry about any leftover remnants and very little cleaning, saving you both time and money.