These refill pages are 6-hole-punched and they are designed to fit into system binders. The wide selection of formats is designed for users to find their perfect system binder combination. Size: Compatible with pocket size 76mm x 128mm refills 6 hole-punched About Raymay Fujii: Founded in 1890, Raymay Fujii is a Japanese company that manufactures and sells a wide range of products from stationery and paper to office machines. Raymay Fujii is one of the leading stationery manufacturers in Japan, and some of their most well-known stationery includes leather system binders, rulers, and compasses.