This term is used to define bead sizes. It is always proceeded by a number. This means the project calls for size 11 beads, or if you are purchasing beads from a supplier this is the size you want. Remember the bigger the number the smaller the bead will be. Before you can do any beadwork you need supplies.
Some instructions ask for specific supplies.
I will try to explain what they mean. I also advise that when a needle gets blunt replace it. Not only are they harder to use when blunt they also separate you beading thread faster. Long thin needles especially made for beading on a loom. The eye of the needle is determined by the size of the needle and it is best to use beeswax to help put the beading thread thru the eye of the needle.