Abstract: A system of stackable yoga blocks having flat top and bottom surfaces that includes magnets at the top and bottom surfaces. The magnets are positioned so that the poles of the magnets will be properly aligned so that the magnets will be attracted to each other when the yoga blocks are stacked. In the preferred embodiment, the yoga blocks are formed from foam in the shape of a cuboid having flat top and bottom surfaces. Disc magnets are placed at the flat top and bottom surfaces of the blocks with the proper polarity and positioning so that the blocks will adhere to each other when stacked.