The Que Audio QAD 5 Extension Arms for QAD4 T-Bar Threaded Adapter is a set of two 2.36" (6 cm) extension arms with a female 1/4″ 20 on one end, and a male 1/4″ 20 on the other. It allows for a wide range of attachment options when used with the QAD4 Q T-bar, and QM1 Run and Gun Cold Shoe Adapter.