By popular demand, The Trem Blocker is Back! This little doohickey is a lifesaver when changing strings on any locking tremolo – floating OR blocked! Just slide the TREM Blocker under the back of your bridge before you relieve the string tension so that your bridge does not sink back into the cavity or pop off of the posts! No more jamming a battery or a Sharpie under your bridge… For God’s sake man – have a little class and BE A PRO!!!