These column dividers are designed for use in the Hobonichi Cousin.  They are specifically designed to cover up the printed red and gray boxes on the monthly section.  These boxes are on the weekends and holidays.  57 strips are included on the sheet.

They fit nicely in the one hour time slot if you are using the pre-printed timeline in the weekly view. 

Sheet is 5x7 inches and is printed on removable matte sticker paper.

Colored date dots are also available here: https://mandylynnplans.com/products/colored-medium-date-dots-multiple-colors-186-removable-matte-planner-stickers?_pos=2&_psq=date+dots&_ss=e&_v=1.0