"The threads of the warp are already in place on Josefina’s loom and become part of the finished blanket. So a new warp like this one is needed for every new blanket that a girl wishes to weave. Instructions for installing the new warp are included."
This is the replacement warp threads for Josefina's loom. You would need this after you've made a blanket on her Loom if you wanted to make another one.
I know that you could possibly buy your own string and re-string it yourself, but for $5 this is already put together for you to just re-attach it to you Josefina's Loom.
This set does not come with any more yarn and the first and last piece of yarn that is 'part' of the replacement warp is white as opposed to her original starting yarn which was blue.
Also includes the instructions for attaching this replacement warp.