Looking for some cool looking concrete barriers for your layout? These are cast in hydrocal plaster & would look great on any layout. Add some graphics (not included) and they'd look perfect on any layout, especially a temporary street circuit. You get 10, each is 6" long, so you get enough to do 5'. As shown here on my Route 66 Raid layout. No damage to cars, because if you hit them they'll just tip over. 

Special! Buy 2 sets & I'll throw in a 3rd set for free! 30 barriers for the price of 20!