DeerRun® Magnetic Cup Holder, Keeps water bottle within reach while you exercise.

Bottle Always within Reach: Keep your water bottle and personal items always within reach with our innovative magnetic holder. Widely Compatible: The Magnetic Cup Holder is compatible with different bottles, it fits coffee travel mugs, big or small water bottles, most cups and tumblers. The inside diameter of the Cup Holder is 76mm/3 in, height is 88mm/3.46 in, Suitable for Most 10-40 Ounce Bottles within Diameter 3". Strong Magnetic Force: There are 6 powerful magnets wrapped in black rubber, don't worry about the powerful magnet will scratch the metal surface. And the magnet can withstand 50lbs of pulling force, don't worry about your cup holder will move around.