Steel plinths are the perfect product for filling unsightly gaps under COLORBOND® fences. They can also be used for retaining. The steel plinth sits under the bottom rail of the fence and are manufactured using the same high quality COLORBOND® steel as the rest of your fence. It makes the fence look neat and tidy as it fills gaps and keeps weeds, debris, and rubbish from entering your yard. They can also help to keep animals from digging under the fence.