This door brace features a non-marring yoke (removable for sliding doors) that helps protect against finish damage. Designed to fit most doors, simple push button adjustment requires no tools. Extends to 45 1/2. Made of high strength steel tube: 20-gauge steel for greater strength. Padded feet provide sure grip on most floor surfaces and protects against finish damage. Collapses to 31 to fit in most suitcases and garment bags for added portablity.