This listing is for 1 sheet 250cm x 30cm
Starting at one end with the iron on a hot setting run the iron up and down the grain several times until the veneer is bonded, then using a block rub the veneer with some pressure to ensure a good bond.
For larger projects it is possible to bond multiple pieces side by side.
It might be worth having a little practice before moving on to the main project.
Please bear in mind these are real natural wood veneers, so the colour may vary slightly. If matching to an existing piece it is very likely the piece you are matching to may have a finish on or been weathered over time, being a natural wood it is common practice to put a finish (lacquer, wax, stain etc) on these veneers to create the perfect match.