-1 1/2" long
-1/4-20 M/F Thread
The EXO Doinker is the next generation in Stabilizer Vibration Dampening Technology. It. features Two Soft Inner Dampeners that support a 1/4-20 Threaded Inserts that are held together by a hard Exoskeleton Shell that is fastened with four stainless steel screws and four stainless steel, nylon locking nuts.