Finger Tape was once mainly used in the USA for taping up hands and fingers to prevent skin-shredding on ascents of prolonged granite crack climbs. It is more commonly used in the UK by ageing rock jocks in search of eternal youth to reinforce weak finger-joints prior to sustained sessions at the wall or on their local boulders - we're not sure about the wisdom of this and would advise dropping your standard a bit or laying off altogether and seeking medical advice for persistent problems. But we bet you won't!