Keychain Retain

A landscape keychain card: a letter or an emoji at one end, a real, scannable QR code beside it, and the split ring hole on the edge. Sizes are in millimetres and they're honest — including the bit where shrink plastic comes out of the oven at less than half the size you printed it.

1 What should it open?

Hand over a gift page, point it at any address, or put the words straight in the code — a phone shows those without any connection at all.

Direction

Who it’s for

Address

Encodes as —

2 Pick the icon

The half you recognise across a room, before you'd ever bother scanning it.

Icon Typeface

3 Size it for the keychain

defaults are fine

Finished size

Scale 120%

Icon side

Punch hole

Printing on shrink plastic

Shrinks to 45% of each edge

Packets usually quote area — "shrinks to 20%" means 45% of each edge. Bake one test piece and measure it; brands differ.

4 Pick a look

defaults are fine

Start from a look

Card

Icon ink

Edge

Edge width 0.00 mm

Advanced settings card detail, code, sheet, export

Card detail

Icon takes 42% Corner round 3.0 mm Hole ⌀ 4.0 mm Label under the code Label typeface Hole guide ring Cut outline

The code

Error correction Backing plate Plate

Code ink

A higher level survives more scuffing but packs more, finer modules into the same square. On something this small that trade rarely pays — the tool already upgrades the level for free whenever it fits.

The sheet

Stock Paper

Margin 8.0 mm Space between 4.0 mm Copies Landscape sheet Fill the sheet

Export

Resolution Format

Cards this small are mostly edges, and edges are where dpi shows. 600 is the default for a reason.

The QR here is a real one — encoded, error-corrected and masked in this tab, then checked against the module size it ends up at. Print with scaling off ("100%", not "fit to page") or every millimetre on this page becomes a lie. Nothing is uploaded; the sheet is drawn here.