The "Window Trims" are as they suggest Pvc trims which can be used to trim around newly fitted windows or  window boards. Also some people have used them to trim around where ever they can to make a nice edge or to cover a gap or rough edge. Examples include around the bath or shower trays, work tops in the kitchen. Simply use an adhesive or a super glue to cover the gaps or make good. They are all a standard 5 metres long and available in white, mahogany and light oak.