Our ramrods are made out of Poplar wood . It is a durable wood that our company has used for over 10 years. They come in 48" lengths and four different diameters 5/16",3/8",7/16", and 1/2".Flex rods are made from a durable, flexible plastic. They come in 5/16", 3/8", and 7/16" diameters and available up to 45" in length. All rods are available in 8x32 or 10x32 threads and only come in Brass or Steel. Please specify diameter thread size, and Brass or Steel when ordering.