QR-5 is adapters for microphone stands and microphone clips & free carrying case bundle and made from machined steel and plastic. Taking advantage of a ball bearing / dual flat wall fitting that makes an extra tight, super quiet connection, the QR-1 is the perfect tool for expeditious swapping of microphones in the studio or on stage. The bottom half threads onto a 5/9” microphone stand while the top half threads into a 5/8” threaded microphone clip. To disconnect the two, simply pull down on the lower half’s molded grip while lifting up on the top half. The QR-5 is a five-pack that includes a FREE carrying case.