Blue, width 12.7 mm, lenght 36.6 mm. Specially coated plastic tape with adhesive backing. Makes labels of any length. Can be used with any pens. Excellent adhesion to glass, metal, PE etc. Resistant to humidity, as well as acids and alkali solutions in weak concentrations. Leaves no residue when removed. Temperature resistance up to +257°C - 30 min. Up to +80°C - 24 h. Resistant to -80°C.