The Hobonichi Techo is a Japanese daily planner. A stencil is a thin sheet of cut-out shapes you trace through with your pen, so a checkbox, an arrow or a small icon comes out neat every time.

This one is cut from acrylic resin and is small enough to live in the pocket of a Techo cover, so it is in your hand the moment you want it.

Why people love it
• The shapes sit on a 3.7 mm grid, the same grid as the Techo Original and Cousin, so what you trace lines up with the page
• One edge is marked as a ruler, for underlining and for drawing your own boxes
• Tracing takes seconds and looks tidier than drawing freehand
• Half a millimetre thick and about 3 grams, so it disappears into the cover

Each one holds a different set of shapes, shown above.