Knob Material

ABS
Acetal
Aluminum
Billet aluminum
Black nylon resin PA6
Brass
Brass/Steel
Brass/Steel/Zinc
Cast Iron FC200
Cold Rolled Steel
Mat Black Nylon Resin PA6 (Reinforced Glass Fiber)
Metal
Nylon
Nylon 6
Nylon 6 (Mat Black)
Nylon 66
Phenol Resin
Phenolic
Plastic
Polypropylene
Stainless SCS13
Steel
Thermoplastic
Wrought Brass
Zinc
Zinc Plated Heavy Gauge Steel