Paper Size: Width 3.7inch/95mm, Length 6.8inch/172mm. 6 holes.Hole Distance: The distance between the third hole and the fourth hole is 5.2cm/1.96inch; for the rest, the distance between every two adjacent holes is 2cm /0.78″.（Please refer to the picture for details.Dimensions of the Grid: Squares with sides of 4 mm.Good Quality: The filler paper is made of good quality paper, which prevents feathering, and bleeding.Only fit 6-ring binder. (MUST BE 6-ring, other type ring binders are NOT COMPATIBLE)Note: The package contains only refill paper, no binder.