Large scale roadbed samples in this kit there are the following items G-350, G- 400, G-425. This kit contains the following itmes 1 pair of LG 350 with a top width of .350" or 3 1/2", 45 degree roadbed 16" long, .350" thick. 1 pair of LG 400 with a top width of .400" or 4", 45 degree roadbed 16" long. .350" thick. 1 pair of LG 425 with a top width of .425" or 4 1/4", 45 degree roadbed 16" long, .350" thick. 1 pair of either LG350 or LG 400 or LG425 45 degree non beveled roadbed 16" long, .350" thick. One of the above pairs is kirfed for make it curvable.