With stainless steel handles and polyester bristles; these brushes were developed from customer feedback requesting a stiffer bristle than the regular soft nylon used for many other brushes. All brushes feature loop ends. Latex-free. Sold non-sterile. FCS indicates equivalent French catheter size. For brush use suggestions see the table document. Available in a large range of brush sizes the overall length of brushes ranges from 10", to 16" & 22"; the 16" length brush tending to be the most popular. Normal pack size of these brushes is 5 per pack.