The komelon self lock evolution tape has a dura ny nylon coated steel dual printed blade with vertical blade markings on the reverse and patented hi vis blade printing the dura ny nylon coating offers superior quality that lasts up to 15 times longer fitted with an auto locking mechanism whilst the majority of pocket tape blades are kept in place by the locking button the self locks blade automatically stays in position only returning into the case once the button is pressed its ergonomically de