The Kerckhaert DF line offers features such as front and hind patterns. The Hinds have left and right foot patterns offering more support on the outside branch. There are different web sizes, clip positioning, and nail hole sizing according to the size of the shoe. Punched for E Head or Liberty Hybrid nails. Features: Targeted towards the A-Class Jumper Circuit. Well-placed and consistent clips (QC Fronts, SC Hinds) and punches. Good shape for easy fitting. High-quality steel for better wear. V-crease for a more secure nail fit. Patented radius clips. Sizing: Width x Length Front 00 (19 x 8mm)= Front 0 (20 x 8mm)= Front 1 (22 x 10mm)= 5 3/8'' x 5 1/4'' (14 1/4'' FIA) Front 2 (22 x 10mm)= 5 5/8'' x 5 1/2'' (15 1/4'' FIA) Front 3 (22 x 10mm)= 6'' x 6'' (16 1/4'' FIA) Front 4 (22 x 10mm)= 6 1/4'' x 6 1/4'' (16 7/8'' FIA) Front 5 (25 x 10mm) = 6 5/8'' x 6 3/8'' (17 3/4'' FIA) Front 6 (25 x 10mm) = 7 1/8'' x 7'' (18 1/4'' FIA) Hind 00 (20 x 8mm)= Hind 0 (22 x 8mm)= 5" x 5" (13 1/4" FIA) Hind 1 (22 x 10mm)= 5 1/8'' x 5 1/4'' (13 3/4'' FIA) Hind 2 (22 x 10mm)= 5 1/2'' x 5 1/2'' (14-3/4'' FIA) Hind 3 (22 x 10mm)= 5 3/4'' x 5 7/8'' (15 1/2'' FIA) Hind 4 (22 x 10mm)= 6 1/8'' x 6 1/4'' (16 1/4'' FIA) Hind 5 (25 x 10mm) = 6 3/8'' x 6 1/2'' (17 1/4'' FIA) Sold per pair (2 shoes). 10 pairs = 1 Box