The Easy-Fit Fencebase is a versatile post support for use on surfaces which can be drilled to accept expansion bolts, such as decking, patios and concrete. It is an ideal way of securing fence posts and the legs of garden structures (such as arches and arbours) without having to dig holes or use concrete. This size is suitable for use with posts between 85mm and 105mm.For post sizes 85mm - 105mmFor fixing fence posts to solid surfaces such as concrete, slabs or decking