The use of the Rolyan Semmes-Weinstein monofilaments has been found through repeated testing to be an extremely accurate method of measuring cutaneous sensibility (Bell, 1978). This test measures both diminishing and returning sensation. Set consists of 20 monofilaments. Each nylon filament is precisely calibrated and all are of equal length. A set of five monofilaments and individual replacements are also available. Complete instructions for use and coloured pencils are included.