The patented stainless steel blade system will allow up to 2,000 RPMs making this bottle perfect for making shakes, smoothies and even salsa, all without power. To use, simply twist the bottom or roll along a clean, dry surface at a 45 degree angle, A snap-on, spill resistant flip top lid makes keeping your liquid where you intend it, a breeze. Available in 6 colors, the bottles are perfect for your next promotion.