Bed slats eliminate the need for a link spring or box spring! They provide support so that you can use a regular mattress on a full size bed rather than having to use a specific bed mattress. Place them under your mattress on the bed frame and you are ready to go. The slats are 2 3/4" wide and are spaced 2 3/4" apart from one another. The slats are attached by 1" wide straps. The slats are 52 3/4" (give or take 1/16") wide are attached to each other out to 75" in length. Be sure to measure your bed to ensure that these slats will fit before you purchase.