SMARTGRIP TECHNOLOGY - Patented uni-directional suction design makes it hard to tip, but easy to lift.
UNIVERSAL FIT - Securely fits all popular 16oz-32oz tumbler cup brands and most insulated water canteens.
STAINLESS STEEL - Stainless steel walls with a durable rubber interior.
Hard to tip, easy to lift. To use simply place the Anchor on any smooth surface and it will keep your drink in place (securely up-right). To remove, lift directly up.