Stop buying desk strips that you have to replace. These ones will last forever when you purchase a Writeboards Site Licence.
Currently desk strips can only be acquired in packs and for your money you only get one version. Then if five of them wear out, you have to go and purchase another pack even though you only need five. You can keep buying desk strips year after year or you could put that money towards your Writeboards Site Licence and have access to all the other templates as well as the seven different styles of QLD Modern Cursive Font desk strips all for the one price.
The letters on the desk strips come both with and without directional arrows so you can choose which is the best one for each of your individual students.