The Polypropylene PP28mm Screw Cap range offer a variety of different design features. These include either Natural or Red Tamper-evident bands, with options of EPE or Polycone Liners plus Child-resistance only or Tamper-Evidence and Child-Resistance. All Closures have a ribbed outer to provide an easy grip surface. All except the item code number C065 and C30399, which are heavily ribbed, have a fine milled surface. These may be applied either by hand or mechanically.