Laser Trak® Detectable Earplugs, Foam, Blue Orange, Corded ORS NASCO Self retracting spring action returns blade Self retracting spring action returns blade safely into the housing when not in use Interlocking nose reduces blade wobble Ergonomic grip fits comfortably in the hand Two blade positions 2mm extension for box cutting and full extension for general use Tool free entry They have a bright green swirled color for winning compliance They’re made from extra soft Non ferrous metal grommet and bright colors – easily detected by visual and automated inspection Self adjusting polyurethane foam expands to fit virtually any wearer Contoured T shape for easy insertion and wear