The BF 250 is supplied with a special collet, type SPV 12-3/8, to create a quick connect and disconnect system for an STR vertical support rod. This can then simply be plugged into the collet and tightened by hand with a half-turn of the milled cap nut. The BF 250 is perfect for desktop applications and provides a sturdy 5.5kg support for a wide range of different microphone choices.