Magnetic Glass Cleaning Tool
If window cleaning isn't your favorite chore, this little gadget will make life easier. With magnets that cling together through the glass, it's attached from the inside, and then worked around the whole window. Use on the fish tank or glass table as well as windows. A security noose is included to fit on your wrist.
Four thicknesses of glass available:
two single panes - 3mm - 8mm single; 5mm - 8mm single
two double panes - 15mm - 24mm double; 20mm - 30mm double.