Self-Adhesive Ladder Safety Inspection Failed Labels printed red on high quality, non-rip matt white permanent vinyl. Ladder Safety Inspection Labels are 100% waterproof and can be easily written on with most pens. Supplied in handy resealable packs of 50 labels, our Ladder Inspection labels measure 50x80mm for positioning on the side of any set of ladders. To achieve best adhesion please apply to a smooth, clean and flat section of ladder.