I added a place for my pups to play and rest. I put the ottoman next to the sofa but the cushions kept sliding. I placed the board on the side of the ottoman away from the sofa and secured it with four clamps. All four may not need to be used, but the cushions remain and the puppies have more room to play and stretch after play. If I ever need a C-Clip for a different purpose, I know where to find one (or two).