A Hoople is a hoop-shaped mobility aid used by some blind and visually impaired people, and was designed to help them navigate their way over rough terrain or in a rural environment. It performs a similar role to a white cane, but is designed for use in conditions where using a white cane can be difficult, for example, in snow or on sand. It can also be used by young children as a pre-cane aid or by people with arthritis and other medical conditions which would make the use of a traditional cane difficult. Because the Hoople is moved along the ground rather than being moved from side to side like a cane the user can also detect any obstructions more easily. The Hoople was invented in the early 1990s by Clive Ellis and Tony Larkin, two lecturers at the Royal National College for the Blind in Hereford, United Kingdom.