De-Quervain's disease classically affects the -
De-Quervian's tenovaginitis is characterized by pain over the styloid process of the radius and palpable thickening in the course of the abductor pollicis longus and extensor pollicis brevis tendons.
Flexor pollicis longus and brevis
Extensor carpi radialis and extensor pollicis longus
Abductor pollicis longus and brevis
Extensor pollicis brevis and abductor pollicis longus