Finally! More Closet Space! Free up some space in your closet with a set of stacking bed lifters! Bed lifters raise your bed in minutes, giving you a space-efficient storage area, which will in turn leave you more room for clothes in the closet and around the home. These solid wood bed risers can be stacked to give you even more underbed storage space. These bed risers fit casters, square and round bed posts. Please note that, due to the finishes being composed of wood, there may be slight differences in color. One set of blocks will raise your bed 2 3/4" to 3 1/2". Add another set of blocks to gain up to 7" in height! Set of 4. Inner circle measures 3" in diameter and 3/4" deep. .