Cleaner is specifically design to safely clean Blu-ray playersThe 10-brush + Pocket cylcone clean process includes 10 flexible brushes strategically placed in a cyclone formation for optimal cleaningIts unique Zero-Clearance technology allows each brush to retract into a pocket to prevent knocking the delicate optical lens out of alignmentThis patent-pending system is especially important for Blu-ray players because the optics can be as close as 0.004" away from the disc.