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The Optimum Nutrition Gainer Shaker is a high-capacity, 1-litre shaker, designed for Serious Mass users who need a durable, leak-proof solution for mixing large, high-calorie shakes with ease.
With a sleek Jet Black design, Optimum Nutrition branding, and a secure, easy-to-use flip-top cap, the Gainer Shaker is the ultimate tool for mixing large, high-calorie shakes—with no mess, no hassle.