1.100 Percent Brand New And High Quality. 2.High quality BPA free plastic protein shaker bottle, food grade 18/8 stainless-steel shaker circle. 3.Our blender cup use food grade 18/8 stainless-steel shaker circle 4.Our shaker bottle is suitable for fitness training, kitchen, office, travel and competition Note: 1 Press the lid with your index finger when shaking 2 Very good protein shakes such as protein powders shaken with milk, cold coffee, and other beverages or smoothies, mixed well. Do not use hot water that is above 65 Degree C / 145 Degree F in a shaker, hot liquid will cause air expansion, that will open the lid 3 Prepare your smoothies ahead of time! protein powders, milk, juice, and flavoring ahead of time to make quick shakes on the go!