The Contigo 20oz Shake & Go Fit Snap-Lid Shaker Bottle, Black has a unique rounded-bottom design that makes it easy to smoothly mix protein drinks and shakes. Engineered for easier mixing and cleaning, its design combines attractive aesthetics with convenient features for those who see nutrition as a way of life. The Shake & Go Fit Mixer Bottle has a rounded bottom and weighted shaker ball that are smartly engineered to work together to help reduce the clumps and build up that are common in other bottles. The Shake & Go Fit Mixer Bottle is 100 percent leak-proof; it features volume markings for easy measurement and a convenient handle to carry on-the-go. The bottle and lid are top-rack dishwasher safe for a convenient, complete clean. Contigo 20oz Shake & Go Fit Snap-Lid Shaker Bottle, Black Rounded bottom and weighted shaker ball reduce clumps and buildup common with other shaker bottles Leak-proof lid for clean and easy shaking and mixing on the go Integrated carrying handle on lid for easy transport Convenient volume markings for accurate measuring and tracking Fits most car cup holders Top-rack dishwasher-safe lid and body Body Material: BPA-free plastic body Dimensions: 3.25" W x 7.87" H Volume capacity 20 oz Brand Contigo Water bottle feature Blender, Flip-Top, Wide Mouth Color Black Accessories Weighted shaker ball Material Plastic Height 7.87 in Pattern Solid Print Theme Nutrition Count 1 Weight 0.368 lb Has written warranty No Model 2106805