SUNSTAR Corner Sticky Note

• 30 sheets of sticky notes.
• Simple but usfully-shaped.
• Fits well on the cornes of pages.
• Perfects for your study notes, works, etc

Note: 

• It may not get on dust, moisture or uneven surfaces.
• Applying to coated paper,art paper, old books, etc may damage the surface.

Sources: https://allegrojapan.com/products/sunstar-stationary-blue-sticky-notes-page-corner-style-set-of-6-packs-of-30-notes-each-new-japanese-invention-featured-on-nhk-tv