A telescopic wiper for the outside of a window you can only reach from indoors.
The pole is stainless steel and the head rotates, so it keeps flat against the glass as you push it away from you and turn it along the pane. The sponge face washes, the blade behind it pulls the water off, and the pane dries clear rather than spotted.
Assembled it measures about 140 x 30 x 24.5 cm. For anyone living above the ground floor it replaces leaning out over a sill: the whole job is done with both feet on the floor, which is reason enough on its own.
