Style 2160, Style 2161, Style 3160, Style 4160, Style 5160, Style 6160, Style 273 2160 — Synthetic fiber w/NBR binder 2161 — Synthetic fiber w/NBR binder and Carbon steel wire mesh inserts 3160 — Synthetic fiber w/Neoprene binder 4160 — NBR binder products 5160 - —Synthetic fiber w/NBR binder 6160 — Fiberglass & aramid w/NBR binder 273 — Graphite w/NBR binder Vegetable Fiber Style 444 also available in 36" wide varying thicknesses