The BEST boundary kick drum bass microphone shock-mounted isolation system in the world! Microphones stay in the place during travel and in the same sweet spot for every show and set-up! It comes with everything you need for that awesome professional sound you want every time and is simple to install using existing drum hardware with no drilling required. This will save valuable space on stage or in the studio and save a lot of time during set-up and tear-down too! It comes in 3 different models to fit different boundary microphones. This is the BEST boundary kick drum microphone shock-mount isolation system worldwide!