Shrink sleeve applicators are known as shrink sleevers, shrink banders, tamper evident banders, neck banders, and, as some machines are capable of both, full body sleevers or shrink labels. Some machines cut after the film has been forced over the product by a V knife. Others may cut while the stock is still flat while being held by vacuum cups, and the high speed machines use a group of circular cutters located outside the mandrel after the band has been fed onto the product. Circular cutters work so fast that speeds of over 250 bottles per minute are possible on a single head.