Round Magnetic Suction Button Clothes Concealed Button Sweater Magnet Button Coat Cardigan Snap Button *Easy and Convenient: Button and unbutton with hand or even two , easy and fast! No more struggling and-wasting *Multiple Uses: The heavy duty buttons can attract each other even through, which enables them be widely used for many. Such as on, windbreakers, suitcases,, handcrafts, home decoration hanging, etc. Sewing holes are there for needle work. *Good Size: Diameter 26mm, Size 40L is just good for most of, windbreakers, Blazers, handcrafts. * Special Designed: With fine dealt black nylon covering, there are strong NdFeB permanent magnets inside. Each button got L and R, which makes them attract each other. The long lasting materials make sure they can be used for life.