Our Solid Color Car flags are made of durable, knitted polyester and are double sided for longer life. The staff and window clip are made of nylon. After trying a large number of different suppliers, we finally found one that was suitable for highway use. However if you drive at speeds over 50 mph frequently the life of these flags may be 1 month or less. But that is pretty good considering the extreme conditions. These Solid Color flags are equal or better quality to car flags sold by other web sites for up to $20 each. We purchase in bulk directly from the manufacturer and pass the savings on to our customers. These car flags are made outside of the US. Other car flags are available, please contact us for availability. Dimensions: Flag-18"x12", Staff-20"L, Clip-3"W