Sabra-Som SSM-1/SL Universal Shock Mount with Speed Lock Stand Mount Same function as the SSM-1, The SPEED-LOCK allows you to pull the mount off your mic stand with a simple 1/4 turn. The additional cost due to the SPEED LOCK embedded in the product is less that the spare quick-locks available in the market. Assemble and disassemble is quicker more steady and more efficient, especially in live performances.