Windscreen wipers

A windscreen wiper comprising:

• a reciprocable arm;
• a flexible blade element mounted on the arm and including a pair of flexible wall members terminating in generally parallel spaced lip members adapted to engage a windscreen surface, said lip members forming a hollow space therebetween, said blade element including at least one conduit means extending along the arm and communicating with said hollow space whereby a cleaning liquid may be passed through said conduit to contact said windscreen surface;
• and
• a flexible brush means mounted within said hollow space to bear on said windscreen surface between the lips of said blade element and to slidably engage said surface during a wiping action, said flexible brush means being comprised of at least to elongated flexible brush carriers including brush means of spaced brush lengths, the brush lengths in adjacent carriers being staggered.