Universal Spline works on 6 fastener types: Torx, Square, 6 and 12 Point, Spline. Flexible, 180 degree angle. Patented 72 tooth design. Packaged in high density foam tray. Includes sizes: 8mm x 10mm, 12mm x 14mm, 13mm x 15mm, 16mm x 18mm and 17mm x 19mm. Extra long spline with 180 degree angle flex heads for increased accessibility, Universal spline works on 6 fastener types including Torx, square, 6 and 12 point, and spline, Patented 72-tooth design, Meets and exceeds ASME/ANSI torque specifications, Packaged in the signature EZ Red high density foam tray. Assembled Product Dimensions (L x W x H). 20.20 x 10.00 x 1.50 Inches.