Chairs, sofas and loveseats sag with age and abuse (like grandkids jumping on them). But these sturdy vinyl-covered furniture savers end the sagging, and give new life to your chairs, loveseats, sofas. Furniture supports are made of particle board, divided into panels that fold to fit your seats. Chair - 22" x 19". Loveseat - 19" x 44". Sofa - 19" x 66".