A wiper blade for use on a vehicle window comprises a blade hinge made of a hydrophobic, elastomeric material, a wiping lip and a blade body. Each of the rails supports a carriage operative to support the winding shaft and release it upon pivoting the rails towards the setting-down station, where at least one of rails pivots away from the winding shaft so as to facilitate removal of the roll from the shaft. The passages in the first insulating block have counterbores on an second end. It may be desirable to allow two similarly prepared displays to have the resealed edge abutted against each other a minimal mullion between them.