Black shake it Stainless Steel Shaker with Mixball 900ml Protein Shaker is a high-quality and durable fitness essential perfect for promoting muscle gain and supporting metabolism. Made with BPA-free and non-toxic materials, this shaker is ideal for both men and women looking to boost their fitness routine. With a sleek design and a generous 900ml volume, this shaker is perfect for mixing protein powders and supplements for a convenient and effective workout experience. shaker weighs 340g for a versatile and efficient use during gym sessions and training.