erm....
I have several.
During my Army training I had 7! all around 1m each
Half were for my poncho shelter, (the others held the webbing pouches together!)
(I'm using the same ones today which means
they are 17 years old! so if you wondered do they last a long time....yes!
Recently I bought some of these cleats:
from here:
http://www.rvops.co.uk/small-cleat-1797.html
I bought some bungee cord and made up 4, 2m bungees adjustable from 2" to about 3m! each
which means when I put my tarps up, the trees can be 7 meters apart from each other!