The rider number goes on your back & the bike board goes on the handlebars of your bike. The bib can be attached with safety pins, however, it is recommended to use a race belt. You simply attach your number to the race belt and then put the clip it around your midriff. It can then be moved to show the number on your back.
The bike board is to be cable tied onto the front of your bike handlebars - this is your timing chip!