"This item is a Screen Rolling Tool with Wood Handle used primarily for installing Fiberglass Screen Fabric into Window Screens and Screen Doors. Designed for Standard-duty usage. It is a ""combination"" tool with a 1-1/2"" x 3/32"" convex steel roller at one end and a 1-1/2"" x 1/8"" concave steel roller at the other. To be used with vinyl screen spline sizes .130"" up to .180"". One (1) per package.
Used to install most screening materials and vinyl spline into window screen frame