Assembly Unit Microphone Mic Screw Clip Thread 1/4" to 3/8" + 3/8" to 5/8" Totally Net Weight:22g.Made in China Material:aluminum alloy A brand new microphone thread adaptor with one new 1/4" to 3/8" adaptor use with microphone stands and clips, for compatibility between 1/4" and 5/8"threads.Screw slots at each end. this list include four metal adaptors:two 1/4" female to 3/8 male adaptor and two 3/8" female to 5/8" male adaptor