1/4" x  1-3/4" top x 2 1/4" bottom Foam Roadbed.  This auction is for 5 pieces 72" long (30' total), Black in color. This roadbed is a very dense foam, much firmer than the Woodland Scenics foam, and has great sound deadning qualities, It can be curved without sliting, easily cut with a sharp knife, and will not harden with age.  This same material is available in light gray, look for it in my other items. I accept only Paypal and ship USPS. I can custom cut widths in this material for different scales or for yard mats.  Please ask questions before you buy..I will send you a sample, just send me your name and address thru the ask a question option.