PI-376  Simple Hair Aesthesiometer

Horse hair carried in a holder, hair length adjustable with graduated tube & protective cap.

PI-377 Von Frey’s Hair Aesthesiometer

Horse hair carried in a holder; hair length adjustable with graduated tube & protective cap.

PI-378  Compass Aesthesiometer

Stainless steel, with well formed points, and an adjusting screw giving movement of app: 1 mm per half turn.