To use, roll out the fondant to a thickness of around 1/16th of an inch. Let the fondant sit and dry out for around 10 minutes.
Dust the cutter with a little cornstarch on a large brush and tap out the excess. Press the cutter into the fondant and rub the cutter back and forth a few times on your mat or worktop. Pick up the cutter with the letter or number still be inside. If it isn't, the fondant is still too soft and sticky. Try adding a little Tylose powder, re-roll, and leave for another 10 minutes.
Rub the edges of the letter in the cutter with your finger or thumb to smooth the fondant.
Here's how Tappits get their name: tap the cutter on your surface and the letter should pop out. It might take a few taps, or even a few whacks
The Windsor Clikstix range, hard-wearing and very easy to use.
Average font size is 13mm-22mm.