ITEM IS A BRAND NEW IN BOX POWER BARNACLE REMOVER.  OPERATES ON 12v DC. . COMES IN BOX WITH 1. GLOVES 2. GLASSES 3. 3" FLAT BLADETOOL 4. FLAT CHISEL BLADE 5.  TOOL 6. CABLE 7. CARRY BAG Boat Maintenance with Waveblade Want to see how Waveblade products clean? Let the vibration do the work, not you! Bottom cleaning starts by gently placing the blade flat on the surface and letting Waveblade's patented Resonant Wave Technologyremove barnacles and other hard growth. When it comes to pressure, less is best!  Less pressure equals optimum blade speed resulting in effortless removal of fouling safely from a variety of surfaces. Safely use Waveblade to clean boat hulls, buoys, docks, metals, wood, concrete, fiberglass, PVC, even inflatables, without damage.  Please check out this u tube video..........https://www.youtube.com/watch?v=WhvnroPxKBY Can be used underwater, clearly saving Major dollars in maintenance and boat slip fees....... Can also be used on a slipped boat .......No Problems