1.25 lb Hex PlateMate (Pair) – The PlateMate Will not magnetically stick properly to surfaces coated with rubber, urethane, neoprene, vinyl. Ideal for saving money & space., Our 1., 25 lb Donut allows for the same benefit of owning a full rack of steel dumbbells for half the price. These patented design magnetic add-on weights attach quickly and easily to ends of any iron dumbbells, cast iron plates, and stack weight machine plates., Dumbbell NOT Included. Magnetic Hex Weight PlateMate Micro Loading 1.25 Pound Donut Weight Plate - 1 Pair PlateMate Magnetic Weights 1.25 lb HEX PLATEMATE (PAIR), Microloading with PlateMate® is the safe, scientific way to build strength at beginning, intermediate and advanced... Intended for use with 10 lb dumbbells and higher. Includes (2) Hex Shaped Magnetic Add-On Weights, 1., 25 lbs each (2., 5 lb total for pair) BalanceFrom 150 Lb Rubber Coated Iron Dumbbell Hex Weights Set With A Rubber Encased Hand Weights 150lbs It is important to make sure your dumbbells are large enough to fit the 3x3 magnetic surface area.