The stones stand about 45 feet apart. The largest is 10'8" in height, the smaller stone rises to 8'8". The remainder of the circle is (barely) visible as the field has been ploughed in the past. The circle appears to have been about 48.5 feet in circumference.
An 'underground passage' was discovered during ploughing early in the 20th century, but this was later covered up. It is possible that the underground passage was, in fact, a cist burial.
The name 'Fingal's Limpet Hammers' is intriguing; a limpet hammer is a device for breaking limpets off rocks. The name apparently stuck because the stones are similar in shape to limpet hammers used locally, and, of course, they are so large that only a giant like Fingal could wield them!
Access to the stones is easy; they are clearly visible from the road. So clearly visible, in fact, that the sign marking their location seems a bit redundant! There is a gate into the field, where the stones can easily be reached.