This is a set of re-useable gadgets to help you make a tarpaulin sheet to fit the Peco kit KNR-10 "15ft Tarpaulin" wagon, and the ready to run models they make which are based on it. To use them, the large flat part is held down on the paper or plastic bag material you want to use to make the sheet, and cut around with a sharp scalpel. This makes the right size sheet to fold over the elongated "Monopoly house" former, which is how to make the tarpaulin exactly the right shape to go over the bar and fit neatly over the wagon sides. Make fold lines in the material along the centre line and between the wagon side fold cutouts, then arrange and hold the folded sheet over the former as neatly as possible with your fingers. Starting with the outsides, fold and the glue the tags at the end down over each other, and press against the end of the former. It may help to glue the outermost ones down against the former first, but don't overdo it. When it has stuck, use the scalpel to ease the sheet back off the former, and check the fit over the wagon. Trim any unwanted overhang at the ends using small sharp scissors. Unless the sheet is already the right colour, you can either paint it while it is on the wagon, or put it back on the former for more support (or to avoid getting unwanted paint on the wagon). The smallest part is a pattern to bend a replacement, thinner, wire around and have the right height and length for the wagon. You won't need this if you're happy with the wire supplied by Peco.