1
You will need a flexible ruler for this project. It would be very difficult project if you try using a normal one.
2
Cut the ruler down to a size that will fit around your wrist nicely.
3
Pierce a hole at either side of the ruler and slip a large jump ring through it.
4
Attach either piece of a jewellery clasp to the two jump rings.
5
Close up the jump rings and your cuff is ready to wear.