Adfors Screen Tool Spline Repair with Convex Concave Roller Wheels Blue This screen rolling tool from is constructed almost entirely of durable plastic. It can be used to install fiberglass screen fabric and vinyl spline into a screen frame for new screens or repair jobs. It features both a convex and a concave roller to accommodate any spline type and also features a smooth plastic handle for a comfortable grip. Adfors Plastic Screen Spline Tool with Convex Concave Roller Wheels: Combination tool with plastic handle, convex and concave rollers Used to install fiberglass screen fabric and vinyl spline into window screen frame Convex and concave plastic wheels with plastic handle Intended for 0.115 to 0.165 spline size One tool included per package Size: 3/32" W x 1-5/8" D Color: Blue View more great items