Carbon fiber end pins have several advantages:
Weight–a cello’s standard 20-inch, 8 mm steel end pin weighs 201 grams. In comparison, our carbon fiber 20-inch end pin weighs a mere 42 grams. That is a 79 percent difference!
Our carbon fiber end pins are made with a sharpened heat-treated metal tip or an exchangeable carbide tip. The entire tip is heat-treated so it can be sharpened many times. If a carbide tip breaks, it can be replaced. The points on both the heat hardened tips and carbide tips are very sharp and hold with out slipping.
End pins absorb energy generated by bowing, and it is logical that a heavy steel end pin will absorb more energy than a carbon fiber end pin. We believe that a carbon fiber end pin does have a positive effect on the sound produced by a cello and double bass. We have many endorsements from cellists using our end pins supporting this belief. However, sound is subjective, and only scientific research could measure positive and any negative effects for each individual string instrument.