Bear in mind that an increasing number of race instructions now stipulate that you must use the numbers supplied by the organiser and you *must not * attach them by any means other than the supplied safety pins. If everybody plays by the rules, we have a nice level playing field, otherwise well-funded arseholes disappear into the distance because their specially developed zig-zag edged tape is gaining them 5W
I like these better than Impsport, and they are cheaper
http://www.jvgraphics.co.uk/sport-event-signs/race-numbers.html
Bear in mind that an increasing number of race instructions now stipulate that you must use the numbers supplied by the organiser and you *must not * attach them by any means other than the supplied safety pins. If everybody plays by the rules, we have a nice level playing field, otherwise well-funded arseholes disappear into the distance because their specially developed zig-zag edged tape is gaining them 5W