This is a collaboration notebook between Campus and Rollbahn. It's a commemorative model for the Campus 50th and Rollbahn 25th anniversaries, featuring an S5 size, 5mm grid ruling, and 80 sheets. 【Brand】Campus, Rollbahn 【Size】S5 【Ruling】5mm Grid 【Number of Sheets】80 【Color】Blue系 (Blue-based) 【Condition】Unused Thank you.