The document describes a new sleeve called the Rossini Everglass Sleeve for narrow web flexo printing. It has a precision ground surface for consistency and longevity. Its high dimensional stability makes it suitable for demanding designs up to 60 lines/cm. The fibre glass surface has superior mechanical properties and is extremely resistant to pressroom solvents with no tape lifting due to improved adhesion. The sleeve maintains a maximum diametrical tolerance of 0.010mm when new and 0.025mm after 5,000 and 10,000 operational hours.