Universal manual expander designed for inch tube: 1/4-inch, 5/16-inch, 3/8-inch, 1/2-inch, 5/8-inch, 3/4-inch, 7/8-inch.. Universal manual expander designed for metric tube: 6mm, 8mm, 10mm, 12mm, 16mm, 19mm, 22mm.. Seven in one expansion tube lightweight, convenient.. Spring design, make it work more effort.. Hinged design, to avoid the handle swing..
