It features a wood handle and steel ball bearings with a convex and concave roller. Free STL file Screen Rolling Tool·3D printing model to download·Cults Prime-Line P7629 Professional Wood Handle Steel Screen Rolling Tool Buy Now Please refer to the line art drawing for dimensions and compare with your needs before ordering For use in new screening and repairing of old screens The metal wheels stand up to abrasion from screen materials, and the smooth wood handle is comfortable and easy to hold. The combination screen rolling tool has a 1-5/16 inch x 3/32 inch convex steel roller at one end and a 1-5/16 inch x 3/32 inch concave steel roller at the other Used to install most screening materials and vinyl spline into window screen frame. Steel rollers with steel ball bearings , Spline size range: 0., 130 inch - 0., 180 in Bulk Screen Rolls 1Pc Wooden Handle And Steel Wheels Rolling Tool For Double Window Flat Spline Roller Tool