All of our rods are manufactured with uni-directional carbon fibres along the length of the rod. Rods up to 5mm in diameter there is a choice of rods made with either epoxy resin or vinylester resin. Over 5mm all rods are made with vinylester resin only. Epoxy resin is a very high quality material producing optimum mechanical properties. Vinylester resin produces a product with high performance to price ratio.