<h3>About this item</h3><ul> <li>1.Specifications and package includes:12pcs/24pcs/36pcs</li> <li>2.Background clips length: 20 cm/ 8 inches(Stretchable to 16 inches); Consist of stretchy cords, locking release tabs, hook-and-loop part and metal clip</li> <li>3.Feature: high quality elastic rope, hook&amp;loop, easy to install, move up and down to adjust position</li> <li>4.Usage method:Just strap them onto the side of backdrop stand, clip them on side of the backdrop, and push the button or pull the string to make the backdrop tight</li> <li>5.Reduce backdrop creases, make backdrop smoother, suit for all types of stand and background supports</li> </ul>