First recorded by this name during the reign of Queen Elizabeth I the circle has been described by William Lukis as "the most interesting and remarkable monument in the county". It is surrounded by a circular ditch and vallum that forms a level platform 175 feet (53 m) in diameter. The circle is 145.5 feet (44.3 m) in diameter with four granite standing stones and several fallen. In the centre is a giant fallen menhir approximately 12 feet (3.7 m) long and 5 feet (1.5 m) at the widest point, split in three places. Lukis suggested that with an average spacing of 12 feet (3.7 m), there would have been thirty seven original stones, whilst Aubrey Burl suggested only twenty eight.
The Stripple stones were excavated in 1905 by H. St. George Gray who found a burnt flint, three flint flakes an ox bone and some charcoal and oak timbers in the surrounding ditch. He also detected an entrance from this facing southwest, directly towards the Trippet stones. Gray noted that the stones had only been set approximately 1.5 feet (0.46 m) deep into the ground. Four postholes were found surrounding the central stone which was discovered to have been offset from the centre of the circle by 14 feet (4.3 m) to the south southeast.
The vallum surrounding the circle has three semi-lunar projections facing towards the northwest, northeast and east. It has been completely obliterated to the south. Aubrey Burl suggested that from the location of the central stone, when upright, alignments with these bulges in the outer bank mark Mayday sunset, Equinox sunrise and the major northern moonrise. He also suggested that the post holes may have been attempts to establish accurate backsights for alignments.Norman Lockyer suggested that sighted from the centre stone, the northeast projection would have aligned with Capella in 1250 BC.