The Roller Striker strikes off and finishes concrete slabs quickly and easily. A spinning tube pulls up the surcharge of concrete as it goes. The spinning roller action leaves aggregate near the surface resulting in a very strong floor, ready for power trowelling if required. Advantages Simple and very rapid operation - just pull a spinning tube along form work. Quick and easy to set up by connecting two pull handles and a hose to the power source. Virtually self-cleaning with the tube requiring just a light hosing down. Highly maneuverable making it easy to strike off suspended floor, slopes and very large areas.