Tomei Duracon Shift Knob for compatible M10 x 1.25mm shifters. Made of Duracon, a material of Poly methylene composites that is known for their high degree of crystallization, and in turn offers high strength, stiffness and hardness, good chemical and environmental resistance including heat and moisture absorption. The shift knob is about no more than 5 ounces, so it is very lightweight and high strength.
Great shift knob for the money. Never gets too hot in the summer which is nice! Only issue I have with it is that the top Tomei insert rattles at cruising speeds. I should have probably glued it in. Other than that it's great.