Glass-fibre reinforced polyamide based (PA) technopolymer coated with "soft-touch" thermoplastic elastomer (TPE), hardness 90 Shore A, black colour. matte finish. The coating material is certified in compliance with FDA (U.S. Food and Drug Administration).
Brass boss, plain blind hole.
Fitting to the shaft by means of a black-oxide steel socket set screw according to ISO 4029 (grub screws with hexagon socket and cup end).