The famous Laborie-style carbon fiber endpin in an adjustable design. The same 1/2" carbon fiber rod and adjusting screw mechanism as the New Harmony heavy-duty permanently-installed endpin; this comes with a threaded, hardened floor spike and thread-on spherical stopper. The cone matches the taper of the fixed carbon-fiber endpins, and our wood endpins. NOTE: we strongly suggest that after experimenting and finding a height range for this endpin in your bass, you add a locking mechanism such as a hose clamp (available at hardware stores) and/or saw off excess length from the carbon fiber rod. In the unlikely event the rod were to slip while the endpin is in use, there is an inherent risk it could contact the fragile inside of the top of your bass.