EcoJarz Shaker Sports Jar with NEW ShakerBlade. All Glass and Stainless Sports Container by Leak-proof All Glass and Stainless Steel Sports Container. Stainless Steel ShakerBlade whisk effectively emulsifies many liquids. A healthy, plastic free alternative to plastic shaker bottles. Glass marked for easy measuring. Mix up protein shakes, smoothies, eggs, salad dressings, and much more.