Brushed aluminum black Punisher skull truck shifter knob. 2-1/8" diameter. Built-in 1/2-13 brass threaded insert. Made of ultra durable Partek resin. This  semi truck interior  accessory is made in the USA.

See more link for Installation Instructions  requires shifter adaptor.  Choose 13/18 Speed, item 238691 or 9/10 Speed, item 238691 sold separately.