End piece and wiper rubber of a wiper blade

A wiper blade comprising:

• an end-piece;
• and
• a wiper rubber,
• the wiper rubber comprising at least one heel and a friction zone, the friction zone being capable of coming into contact with a surface to be wiped,
• the end-piece comprising:
• a first receiver which is configured to receive a first end of a flexible support of the wiper blade,
• a second receiver into which the heel of the wiper rubber extends, the two receivers being superposed in a plane passing through the heel and through the friction zone, and
• an attachment to the wiper rubber integrally formed with the end-piece,
• wherein the attachment comprises a channel formed through a peripheral wall of the end-piece, the channel comprising a first portion of a first width and a second portion of a second width, the second width being greater than the first width;
• and
• a flexible support, the first end of which is received inside the first receiver.