Specifications: 1) Size: 1/4", 5/16", 3/8", 1/2", 5/8", 3/4", 7/8", 1" 2) Length: 460mm Inner packing: 1 set/wooden box with window Outer packing: 6 sets/ctn Carton dimensions: 51 x 23 x 33cm N.W.: 22kg G.W.: 21kg