HellermannTyton SMF180 White, Total Length 180mm, 1 bag (100 pieces) RoHS compliant These are plastic wire markers. They make it easy to organize wires and can be reused many times. ● The retaining part is spherical, so it is less likely to damage the insulation of wires and optical cords. ● Features a repeat function that allows removal after bundling. Unopened and stored at home.